Ticket #37013: 37013.6.diff

.travis.yml

@@ -4 +4 @@
   apt: true
   directories:
     - node_modules
+    - vendor
+    - $HOME/.composer/cache
 env:
   global:
     - WP_TRAVISCI=travis:phpunit
 matrix:
   include:
-  - php: 7.0
+  - php: 7.1
     env: WP_TRAVISCI=travis:js
-  - php: 5.2
-  - php: 5.3
-  - php: 5.4
-  - php: 5.5
+  - php: 7.1
+  - php: 7.0
   - php: 5.6
   - php: 5.6
     env: WP_TRAVIS_OBJECT_CACHE=true
     services: memcached
-  - php: hhvm
-    sudo: required
-    dist: trusty
-    group: edge
-    addons:
-      apt:
-        packages:
-        - mysql-server-5.6
-        - mysql-client-core-5.6
-        - mysql-client-5.6
-  - php: 7.0
-  - php: 7.1
+  - php: 5.5
+  - php: 5.4
+  - php: 5.3
+  - php: 5.2
   - php: nightly
   allow_failures:
-  - php: hhvm
   - php: nightly
 before_install:
 - |
@@ -43 +34 @@
       sed -i "s/youremptytestdbnamehere/wordpress_tests/" wp-tests-config.php
       sed -i "s/yourusernamehere/root/" wp-tests-config.php
       sed -i "s/yourpasswordhere//" wp-tests-config.php
-      svn checkout https://plugins.svn.wordpress.org/wordpress-importer/trunk tests/phpunit/data/plugins/wordpress-importer
+      svn checkout https://plugins.svn.wordpress.org/wordpress-importer/tags/0.6.3/ tests/phpunit/data/plugins/wordpress-importer
   fi
 - |
   if [[ "$WP_TRAVIS_OBJECT_CACHE" == "true" ]]; then
-    curl https://raw.githubusercontent.com/tollmanz/wordpress-pecl-memcached-object-cache/584392b56dc4adbe52bd2c7b86f875e23a3e5f75/object-cache.php > src/wp-content/object-cache.php
+    cp tests/phpunit/includes/object-cache.php src/wp-content/object-cache.php
     echo "extension = memcached.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   fi
 before_script:
 - |
-  # Remove Xdebug for a huge performance increase, but not from nightly or hhvm:
+  # Remove Xdebug for a huge performance increase, but not from nightly:
   stable='^[0-9\.]+$'
   if [[ "$TRAVIS_PHP_VERSION" =~ $stable ]]; then
     phpenv config-rm xdebug.ini
@@ -67 +58 @@
   # Install the specified version of PHPUnit depending on the PHP version:
   if [[ "$WP_TRAVISCI" == "travis:phpunit" ]]; then
     case "$TRAVIS_PHP_VERSION" in
-      7.1|7.0|hhvm|nightly)
-        echo "Using PHPUnit 5.7"
-        composer global require "phpunit/phpunit=5.7.*"
+      7.1|7.0|nightly)
+        echo "Using PHPUnit 6.1"
+        composer global require "phpunit/phpunit=6.1.*"
         ;;
       5.6|5.5|5.4|5.3)
         echo "Using PHPUnit 4.8"
@@ -94 +85 @@
 - mysql --version
 - phpenv versions
 - php --version
-- |
-  # Debug PHP extensions, but not on HHVM because the command hangs indefinitely:
-  if [[ "$TRAVIS_PHP_VERSION" != 'hhvm' ]]; then
-    php -m
-  fi
+- php -m
 - npm --version
 - node --version
 - which phpunit
@@ -107 +94 @@
 - grunt --version
 - git --version
 - svn --version
+- locale -a
 script: grunt $WP_TRAVISCI
 notifications:
   slack:

Gruntfile.js

@@ -426 +426 @@
                 phpunit: {
                         'default': {
                                 cmd: 'phpunit',
-                                args: ['-c', 'phpunit.xml.dist']
+                                args: ['--verbose', '-c', 'phpunit.xml.dist']
                         },
                         ajax: {
                                 cmd: 'phpunit',
-                                args: ['-c', 'phpunit.xml.dist', '--group', 'ajax']
+                                args: ['--verbose', '-c', 'phpunit.xml.dist', '--group', 'ajax']
                         },
                         multisite: {
                                 cmd: 'phpunit',
-                                args: ['-c', 'tests/phpunit/multisite.xml']
+                                args: ['--verbose', '-c', 'tests/phpunit/multisite.xml']
                         },
                         'external-http': {
                                 cmd: 'phpunit',
-                                args: ['-c', 'phpunit.xml.dist', '--group', 'external-http']
+                                args: ['--verbose', '-c', 'phpunit.xml.dist', '--group', 'external-http']
                         },
                         'restapi-jsclient': {
                                 cmd: 'phpunit',
-                                args: ['-c', 'phpunit.xml.dist', '--group', 'restapi-jsclient']
+                                args: ['--verbose', '-c', 'phpunit.xml.dist', '--group', 'restapi-jsclient']
                         }
                 },
                 uglify: {

phpunit.xml.dist

@@ -2 +2 @@
         bootstrap="tests/phpunit/includes/bootstrap.php"
         backupGlobals="false"
         colors="true"
+        beStrictAboutTestsThatDoNotTestAnything="true"
         >
     <testsuites>
         <!-- Default test suite to run all tests -->
@@ -23 +24 @@
         <exclude>
             <group>ajax</group>
             <group>ms-files</group>
+            <group>ms-required</group>
             <group>external-http</group>
         </exclude>
     </groups>

src/wp-admin/css/color-picker.css

@@ -133 +133 @@
         box-shadow:
                 0 0 0 1px #5b9dd9,
                 0 0 2px 1px rgba(30, 140, 190, .8);
-}
- No newline at end of file
+}
+
+@media screen and ( max-width: 782px ) {
+        .wp-picker-container input[type="text"].wp-color-picker {
+                margin-right: 6px;
+                padding: 3px 5px;
+        }
+}

src/wp-admin/css/common.css

@@ -865 +865 @@
         border-bottom: 1px solid #fafafa;
 }
 
-.widget-control-remove,
-.widget-control-remove:focus,
 .row-actions span.delete a,
 .row-actions span.trash a,
 .row-actions span.spam a,
@@ -893 +891 @@
 #media-items a.delete:hover,
 #media-items a.delete-permanently:hover,
 #nav-menu-footer .menu-delete:hover {
-        color: #f00;
+        color: #dc3232;
         border: none;
 }
 
-.widget-control-remove:hover {
-        color: #f00;
-}
-
 /*------------------------------------------------------------------------------
   3.0 - Actions
 ------------------------------------------------------------------------------*/
@@ -3086 +3080 @@
 /* Metabox collapse arrow indicators */
 .js .sidebar-name .sidebar-name-arrow:before,
 .js .meta-box-sortables .postbox .toggle-indicator:before,
-.bulk-action-notice .toggle-indicator:before {
-        content: "\f142";
+.bulk-action-notice .toggle-indicator:before,
+.js .accordion-section .handlediv .sidebar-name-arrow:before {
         display: inline-block;
         font: normal 20px/1 dashicons;
         speak: none;
@@ -3096 +3090 @@
         text-decoration: none !important;
 }
 
+/* Open state */
+.js .sidebar-name .sidebar-name-arrow:before,
+.js .meta-box-sortables .postbox .toggle-indicator:before,
+.bulk-action-notice .toggle-indicator:before,
+.js .accordion-section.open .handlediv .sidebar-name-arrow:before {
+        content: "\f142";
+}
+
+/* Closed state */
 .js .widgets-holder-wrap.closed .sidebar-name-arrow:before,
 .js .meta-box-sortables .postbox.closed .handlediv .toggle-indicator:before,
-.bulk-action-notice .bulk-action-errors-collapsed .toggle-indicator:before {
+.bulk-action-notice .bulk-action-errors-collapsed .toggle-indicator:before,
+.js .accordion-section .handlediv .sidebar-name-arrow:before {
         content: "\f140";
 }
 
-.js .sidebar-name .sidebar-name-arrow:before {
-        padding: 10px;
-        left: 0;
-}
-
 .js #widgets-left .sidebar-name .sidebar-name-arrow {
         display: none;
 }
@@ -3149 +3148 @@
                 0 0 2px 1px rgba(30, 140, 190, .8);
 }
 
+.js .metabox-holder .accordion-section .accordion-section-title:after {
+        content: none;
+}
+
+.js .metabox-holder .accordion-section .handlediv {
+        float: right;
+        position: relative;
+        top: 11px;
+        margin-right: 11px;
+        z-index: 2;
+}
+
+.js .metabox-holder .accordion-section .handlediv .sidebar-name-arrow:before {
+        width: 20px;
+        border-radius: 50%;
+        text-indent: -1px; /* account for the dashicon alignment */
+}
+
+.js .metabox-holder .accordion-section .handlediv:focus {
+        outline: none;
+        border: none;
+        box-shadow: none;
+}
+
+.js .metabox-holder .accordion-section .handlediv:focus .sidebar-name-arrow:before {
+        box-shadow:
+                0 0 0 1px #5b9dd9,
+                0 0 2px 1px rgba(30, 140, 190, .8);
+}
+
 /* @todo: appears to be Press This only and overridden */
 #photo-add-url-div input[type="text"] {
         width: 300px;
@@ -3244 +3273 @@
 
 /* @todo: can we use a common class for these? */
 .nav-menus-php .item-edit:before,
-.widget-top a.widget-action:after,
+.widget-top .widget-action .toggle-indicator:before,
 .control-section .accordion-section-title:after,
-.accordion-section-title:after {
+.accordion-section-title:after,
+.accordion-section-arrow:after {
         right: 0;
         content: "\f140";
-        border: none;
-        background: none;
         font: normal 20px/1 dashicons;
         speak: none;
         display: block;
-        padding: 0;
-        text-indent: 0;
-        text-align: center;
-        position: relative;
         -webkit-font-smoothing: antialiased;
         -moz-osx-font-smoothing: grayscale;
         text-decoration: none !important;
 }
 
+.widget-top .widget-action .toggle-indicator:before {
+        padding: 1px 2px 1px 0px;
+        -webkit-border-radius: 50%;
+        border-radius: 50%;
+}
+
 .handlediv,
 .postbox .handlediv.button-link,
 .item-edit,
@@ -3288 +3318 @@
         color: #23282d;
 }
 
-.widget-top a.widget-action:after {
-        padding: 1px 2px 1px 0px;
-        margin-top: 10px;
-        margin-right: 10px;
-        -webkit-border-radius: 50%;
-        border-radius: 50%;
-}
-
-.widget-top a.widget-action:focus:after {
+.widget-top .widget-action:focus .toggle-indicator:before {
         -webkit-box-shadow:
                 0 0 0 1px #5b9dd9,
                 0 0 2px 1px rgba(30,140,190,.8);
@@ -3315 +3337 @@
 .control-section.open .accordion-section-title:after,
 #customize-info.open .accordion-section-title:after,
 .nav-menus-php .menu-item-edit-active .item-edit:before,
-.widget.open .widget-top a.widget-action:after {
+.widget.open .widget-top .widget-action .toggle-indicator:before,
+.open .accordion-section-arrow:after {
         content: "\f142";
 }
 
@@ -3594 +3617 @@
         /* @todo: evaluate - most of these were likely replaced by dashicons */
         .curtime #timestamp,
         #screen-meta-links a.show-settings,
-        .widget-top a.widget-action,
-        .widget-top a.widget-action:hover,
+        .widget-top .widget-action,
+        .widget-top .widget-action:hover,
         .sidebar-name-arrow,
         .sidebar-name:hover .sidebar-name-arrow,
         .meta-box-sortables .postbox:hover .handlediv,

src/wp-admin/css/customize-controls.css

@@ -617 +617 @@
 
 .customize-control select {
         width: 100%;
-        max-width: 300px;
         height: 28px;
         line-height: 28px;
 }
@@ -744 +743 @@
 
 .customize-control-dropdown-pages .new-content-item {
         width: 100%;
-        max-width: 300px;
         padding: 5px 0 5px 1px;
         position: relative;
 }
@@ -1189 +1187 @@
 .customize-section-description-container + #customize-control-custom_css:last-child {
         margin-left: -12px;
         width: 299px;
+        width: -webkit-calc( 100% + 24px );
+        width: calc( 100% + 24px );
         margin-bottom: -12px;
 }
 
 @media screen and ( max-width: 640px ) {
         .customize-section-description-container + #customize-control-custom_css:last-child {
-                margin-left: 0;
                 margin-right: 0;
-                width: 100%;
         }
         .customize-section-description-container + #customize-control-custom_css:last-child textarea {
                 height: -webkit-calc( 100vh - 140px );
                 height: calc( 100vh - 140px );
-                width: 100%;
-                border: solid 1px #ddd;
         }
 }
 

src/wp-admin/css/customize-nav-menus.css

@@ -153 +153 @@
         text-align: center;
 }
 
-.wp-customizer .menu-item.menu-item-edit-active .item-edit .toggle-indicator:after {
+.wp-customizer .menu-item.menu-item-edit-active .item-edit .toggle-indicator:before {
         content: "\f142";
 }
 
@@ -271 +271 @@
         display: inline-block;
         font-size: 20px;
         line-height: 1;
-        text-indent: -1px; /* account for the dashicon alignment */
 }
 
 .rtl .wp-customizer .toggle-indicator {
         text-indent: 1px; /* account for the dashicon alignment */
 }
 
-.wp-customizer .toggle-indicator:after {
+.wp-customizer .menu-item .item-edit .toggle-indicator:before,
+#available-menu-items .accordion-section-title .toggle-indicator:before {
         content: "\f140";
+        display: block;
+        padding: 1px 2px 1px 0px;
         speak: none;
-        vertical-align: top;
         -webkit-border-radius: 50%;
         border-radius: 50%;
         color: #72777c;
@@ -494 +495 @@
         content: none !important;
 }
 
-#available-menu-items .accordion-section-title:hover .toggle-indicator:after,
-#available-menu-items .button-link:hover .toggle-indicator:after,
-#available-menu-items .button-link:focus .toggle-indicator:after {
+#available-menu-items .accordion-section-title:hover .toggle-indicator:before,
+#available-menu-items .button-link:hover .toggle-indicator:before,
+#available-menu-items .button-link:focus .toggle-indicator:before {
         color: #23282d;
 }
 
-#available-menu-items .open .accordion-section-title .toggle-indicator:after {
+#available-menu-items .open .accordion-section-title .toggle-indicator:before {
         content: "\f142";
         color: #23282d;
 }
@@ -837 +838 @@
 .wp-customizer .menu-item .submitbox .submitdelete:focus,
 .customize-screen-options-toggle:focus:before,
 #customize-controls .customize-info .customize-help-toggle:focus:before,
-.wp-customizer button:focus .toggle-indicator:after,
+.wp-customizer button:focus .toggle-indicator:before,
 .menu-delete:focus,
 .menu-item-bar .item-delete:focus:before,
 #available-menu-items .item-add:focus:before {

src/wp-admin/css/customize-widgets.css

@@ -89 +89 @@
         line-height: 16px;
 }
 
-.customize-control-widget_form.expanded a.widget-action:after {
+.customize-control-widget_form.expanded .widget-action .toggle-indicator:before {
         content: "\f142";
 }
 
-.customize-control-widget_form.wide-widget-control a.widget-action:after {
+.customize-control-widget_form.wide-widget-control .widget-action .toggle-indicator:before {
         content: "\f139";
 }
 
-.customize-control-widget_form.wide-widget-control.expanded a.widget-action:after {
+.customize-control-widget_form.wide-widget-control.expanded .widget-action .toggle-indicator:before {
         content: "\f141";
 }
 
@@ -438 +438 @@
         .last-widget {
                 margin-bottom: 15px;
         }
+        /* This rule reduces the widgets titles height. */
         .widget-title h3 {
                 padding: 13px 15px;
         }
+        .widget-top .widget-action {
+                padding-bottom: 8px;
+        }
         .widget-reorder-nav span {
                 height: 39px;
         }

src/wp-admin/css/dashboard.css

@@ -308 +308 @@
         padding: 0;
 }
 
-#dashboard_primary .widget-loading,
-#dashboard_primary .dashboard-widget-control-form {
+#dashboard_primary .widget-loading {
         padding: 12px 12px 0;
+        margin-bottom: 1em !important; /* Needs to override `.postbox .inside > p:last-child` in common.css */
 }
 
-body #dashboard-widgets .postbox form .submit {
+/* Notice when JS is off. */
+#dashboard_primary .inside .notice {
         margin: 0;
 }
 
-.dashboard-widget-control-form {
-        overflow: hidden;
+body #dashboard-widgets .postbox form .submit {
+        margin: 0;
 }
 
+/* Used only for configurable widgets. */
 .dashboard-widget-control-form p {
         margin-top: 0;
 }

src/wp-admin/css/themes.css

@@ -1332 +1332 @@
         -moz-box-sizing: border-box;
         box-sizing: border-box;
         position: fixed;
-        width: 300px;
+        min-width: 300px;
+        max-width: 600px;
+        width: 18%;
         height: 100%;
         top: 0;
         bottom: 0;
@@ -1361 +1363 @@
         margin-left: -300px;
 }
 
+@media screen and (min-width: 1667px) {
+        .wp-full-overlay.expanded {
+                margin-left: 18%;
+        }
+
+        .wp-full-overlay.collapsed .wp-full-overlay-sidebar {
+                margin-left: -18%;
+        }
+}
+
+@media screen and (min-width: 3333px) {
+        .wp-full-overlay.expanded {
+                margin-left: 600px;
+        }
+
+        .wp-full-overlay.collapsed .wp-full-overlay-sidebar {
+                margin-left: -600px;
+        }
+}
+
 .wp-full-overlay-sidebar:after {
         content: "";
         display: block;
@@ -1520 +1542 @@
         box-shadow: none !important;
         -webkit-border-radius: 0 !important;
         border-radius: 0 !important;
-        z-index: -1; /* Below device buttons */
 }
 
 .wp-core-ui .wp-full-overlay .collapse-sidebar:hover,
@@ -1616 +1637 @@
         position: fixed;
         bottom: 0;
         left: 0;
-        width: 299px;
+        min-width: 299px;
+        max-width: 599px;
+        width: 18%;
         height: 45px;
         border-top: 1px solid #ddd;
         background: #eee;
 }
 
-.wp-full-overlay-footer .devices {
+.wp-full-overlay-footer .devices-wrapper {
         float: right;
+}
+
+.wp-full-overlay-footer .devices {
+        position: relative;
         background: #eee;
         -webkit-box-shadow: -20px 0 10px -5px #eee;
         box-shadow: -20px 0 10px -5px #eee;

src/wp-admin/css/widgets.css

@@ -14 +14 @@
         background: #f7f7f7;
 }
 
-.widget-top a.widget-action,
-.widget-top a.widget-action:hover {
-        -webkit-box-shadow: none;
-        box-shadow: none;
+.widget-top .widget-action {
+        border: 0;
+        margin: 0;
+        padding: 10px;
+        background: none;
+        cursor: pointer;
         outline: none;
-        text-decoration: none;
 }
 
 .widget-title h3,
@@ -50 +51 @@
 }
 
 .deleting .widget-title,
-.deleting .widget-top a.widget-action:after {
+.deleting .widget-top .widget-action .toggle-indicator:before {
         color: #a0a5aa;
 }
 
@@ -91 +92 @@
         box-sizing: border-box;
 }
 
-.sidebar-name-arrow {
-        position: absolute;
-        top: 0;
-        right: 0;
-        bottom: 0;
+.js .sidebar-name .handlediv {
+        float: right;
+    width: 32px;
+    height: 32px;
+    padding: 0;
+}
+
+.js .sidebar-name .handlediv:focus {
+        box-shadow: none;
+        outline: none;
+}
+
+.js #widgets-left .sidebar-name .handlediv:focus .sidebar-name-arrow {
+        display: block;
+}
+
+.js .sidebar-name .handlediv:focus .sidebar-name-arrow:before {
+        box-shadow:
+                0 0 0 1px #5b9dd9,
+                0 0 2px 1px rgba(30, 140, 190, .8);
+}
+
+.js .sidebar-name .sidebar-name-arrow:before {
+        margin-top: 14px;
+        width: 20px;
+        border-radius: 50%;
+        text-indent: -1px; /* account for the dashicon alignment */
+}
+
+.js .widget-liquid-left .sidebar-name .sidebar-name-arrow:before {
+        margin-top: 7px;
 }
 
 .js .sidebar-name {
@@ -156 +183 @@
         margin: 0 10px 0 0;
 }
 
-#widgets-left .sidebar-name .sidebar-name-arrow:before {
-        padding: 9px;
-}
-
 #widgets-left .widgets-holder-wrap,
 div#widgets-left .widget-holder {
         background: transparent;
@@ -249 +272 @@
         padding: 15px 7px;
 }
 
-div#widgets-right .sidebar-name .sidebar-name-arrow:before {
-        top: 2px;
-}
-
 div#widgets-right .widget-top {
         padding: 0;
 }

src/wp-admin/customize.php

@@ -171 +171 @@
                 </div>
 
                 <div id="customize-footer-actions" class="wp-full-overlay-footer">
-                        <?php $previewable_devices = $wp_customize->get_previewable_devices(); ?>
-                        <?php if ( ! empty( $previewable_devices ) ) : ?>
-                        <div class="devices">
-                                <?php foreach ( (array) $previewable_devices as $device => $settings ) : ?>
-                                        <?php
-                                        if ( empty( $settings['label'] ) ) {
-                                                continue;
-                                        }
-                                        $active = ! empty( $settings['default'] );
-                                        $class = 'preview-' . $device;
-                                        if ( $active ) {
-                                                $class .= ' active';
-                                        }
-                                        ?>
-                                        <button type="button" class="<?php echo esc_attr( $class ); ?>" aria-pressed="<?php echo esc_attr( $active ) ?>" data-device="<?php echo esc_attr( $device ); ?>">
-                                                <span class="screen-reader-text"><?php echo esc_html( $settings['label'] ); ?></span>
-                                        </button>
-                                <?php endforeach; ?>
-                        </div>
-                        <?php endif; ?>
                         <button type="button" class="collapse-sidebar button" aria-expanded="true" aria-label="<?php echo esc_attr( _x( 'Hide Controls', 'label for hide controls button without length constraints' ) ); ?>">
                                 <span class="collapse-sidebar-arrow"></span>
                                 <span class="collapse-sidebar-label"><?php _ex( 'Hide Controls', 'short (~12 characters) label for hide controls button' ); ?></span>
                         </button>
+                        <?php $previewable_devices = $wp_customize->get_previewable_devices(); ?>
+                        <?php if ( ! empty( $previewable_devices ) ) : ?>
+                        <div class="devices-wrapper">
+                                <div class="devices">
+                                        <?php foreach ( (array) $previewable_devices as $device => $settings ) : ?>
+                                                <?php
+                                                if ( empty( $settings['label'] ) ) {
+                                                        continue;
+                                                }
+                                                $active = ! empty( $settings['default'] );
+                                                $class = 'preview-' . $device;
+                                                if ( $active ) {
+                                                        $class .= ' active';
+                                                }
+                                                ?>
+                                                <button type="button" class="<?php echo esc_attr( $class ); ?>" aria-pressed="<?php echo esc_attr( $active ) ?>" data-device="<?php echo esc_attr( $device ); ?>">
+                                                        <span class="screen-reader-text"><?php echo esc_html( $settings['label'] ); ?></span>
+                                                </button>
+                                        <?php endforeach; ?>
+                                </div>
+                        </div>
+                        <?php endif; ?>
                 </div>
         </form>
         <div id="customize-preview" class="wp-full-overlay-main"></div>

src/wp-admin/includes/ajax-actions.php

@@ -1497 +1497 @@
 
         $args['pagenum'] = ! empty( $_POST['page'] ) ? absint( $_POST['page'] ) : 1;
 
-        require(ABSPATH . WPINC . '/class-wp-editor.php');
+        if ( ! class_exists( '_WP_Editors', false ) ) {
+                require( ABSPATH . WPINC . '/class-wp-editor.php' );
+        }
+
         $results = _WP_Editors::wp_link_query( $args );
 
         if ( ! isset( $results ) )

src/wp-admin/includes/dashboard.php

@@ -191 +191 @@
  * @param array $meta_box
  */
 function _wp_dashboard_control_callback( $dashboard, $meta_box ) {
-        echo '<form method="post" class="dashboard-widget-control-form">';
+        echo '<form method="post" class="dashboard-widget-control-form wp-clearfix">';
         wp_dashboard_trigger_widget_control( $meta_box['id'] );
         wp_nonce_field( 'edit-dashboard-widget_' . $meta_box['id'], 'dashboard-widget-nonce' );
         echo '<input type="hidden" name="widget_id" value="' . esc_attr($meta_box['id']) . '" />';
@@ -968 +968 @@
  * @return bool False on failure. True on success.
  */
 function wp_dashboard_cached_rss_widget( $widget_id, $callback, $check_urls = array() ) {
-        $loading = '<p class="widget-loading hide-if-no-js">' . __( 'Loading&#8230;' ) . '</p><p class="hide-if-js">' . __( 'This widget requires JavaScript.' ) . '</p>';
+        $loading = '<p class="widget-loading hide-if-no-js">' . __( 'Loading&#8230;' ) . '</p><div class="hide-if-js notice notice-error inline"><p>' . __( 'This widget requires JavaScript.' ) . '</p></div>';
         $doing_ajax = wp_doing_ajax();
 
         if ( empty($check_urls) ) {

src/wp-admin/includes/meta-boxes.php

@@ -50 +50 @@
 <?php
 $preview_link = esc_url( get_preview_post_link( $post ) );
 if ( 'publish' == $post->post_status ) {
-        $preview_button = __( 'Preview Changes' );
+        $preview_button_text = __( 'Preview Changes' );
 } else {
-        $preview_button = __( 'Preview' );
+        $preview_button_text = __( 'Preview' );
 }
+
+$preview_button = sprintf( '%1$s<span class="screen-reader-text"> %2$s</span>',
+        $preview_button_text,
+        /* translators: accessibility text */
+        __( '(link opens in a new window)' )
+);
 ?>
 <a class="preview button" href="<?php echo $preview_link; ?>" target="wp-preview-<?php echo (int) $post->ID; ?>" id="post-preview"><?php echo $preview_button; ?></a>
 <input type="hidden" name="wp-preview" id="wp-preview" value="" />

src/wp-admin/includes/ms.php

@@ -785 +785 @@
 function site_admin_notice() {
         global $wp_db_version, $pagenow;
 
-        if ( ! is_super_admin() ) {
+        if ( ! current_user_can( 'upgrade_network' ) ) {
                 return false;
         }
 

src/wp-admin/includes/options.php

@@ -53 +53 @@
                         if ( "date_format_custom_radio" != $(this).attr("id") )
                                 $( "input[name='date_format_custom']" ).val( $( this ).val() ).siblings( '.example' ).text( $( this ).parent( 'label' ).children( '.format-i18n' ).text() );
                 });
-                $("input[name='date_format_custom']").focus(function(){
+                $( 'input[name="date_format_custom"]' ).on( 'click input', function() {
                         $( '#date_format_custom_radio' ).prop( 'checked', true );
                 });
 
@@ -61 +61 @@
                         if ( "time_format_custom_radio" != $(this).attr("id") )
                                 $( "input[name='time_format_custom']" ).val( $( this ).val() ).siblings( '.example' ).text( $( this ).parent( 'label' ).children( '.format-i18n' ).text() );
                 });
-                $("input[name='time_format_custom']").focus(function(){
+                $( 'input[name="time_format_custom"]' ).on( 'click input', function() {
                         $( '#time_format_custom_radio' ).prop( 'checked', true );
                 });
                 $("input[name='date_format_custom'], input[name='time_format_custom']").change( function() {

src/wp-admin/includes/post.php

@@ -1448 +1448 @@
  *
  * @since 2.5.0
  *
- * @param int $post_id ID of the post to check for editing
- * @return integer False: not locked or locked by current user. Int: user ID of user with lock.
+ * @param int $post_id ID of the post to check for editing.
+ * @return int|false ID of the user with lock. False if the post does not exist, post is not locked,
+ *                   the user with lock does not exist, or the post is locked by current user.
  */
 function wp_check_post_lock( $post_id ) {
-        if ( !$post = get_post( $post_id ) )
+        if ( ! $post = get_post( $post_id ) ) {
                 return false;
+        }
 
-        if ( !$lock = get_post_meta( $post->ID, '_edit_lock', true ) )
+        if ( ! $lock = get_post_meta( $post->ID, '_edit_lock', true ) ) {
                 return false;
+        }
 
         $lock = explode( ':', $lock );
         $time = $lock[0];
         $user = isset( $lock[1] ) ? $lock[1] : get_post_meta( $post->ID, '_edit_last', true );
 
+        if ( ! get_userdata( $user ) ) {
+                return false;
+        }
+
         /** This filter is documented in wp-admin/includes/ajax-actions.php */
         $time_window = apply_filters( 'wp_check_post_lock_window', 150 );
 
-        if ( $time && $time > time() - $time_window && $user != get_current_user_id() )
+        if ( $time && $time > time() - $time_window && $user != get_current_user_id() ) {
                 return $user;
+        }
+
         return false;
 }
 
@@ -1475 +1484 @@
  *
  * @since 2.5.0
  *
- * @param int $post_id ID of the post to being edited
- * @return bool|array Returns false if the post doesn't exist of there is no current user, or
- *      an array of the lock time and the user ID.
+ * @param int $post_id ID of the post being edited.
+ * @return array|false Array of the lock time and user ID. False if the post does not exist, or
+ *                     there is no current user.
  */
 function wp_set_post_lock( $post_id ) {
-        if ( !$post = get_post( $post_id ) )
+        if ( ! $post = get_post( $post_id ) ) {
                 return false;
-        if ( 0 == ($user_id = get_current_user_id()) )
+        }
+
+        if ( 0 == ( $user_id = get_current_user_id() ) ) {
                 return false;
+        }
 
         $now = time();
         $lock = "$now:$user_id";
 
         update_post_meta( $post->ID, '_edit_lock', $lock );
+
         return array( $now, $user_id );
 }
 

src/wp-admin/includes/schema.php

@@ -951 +951 @@
 
         if ( !is_multisite() ) {
                 $site_admins = array( $site_user->user_login );
-                $users = get_users( array( 'fields' => array( 'ID', 'user_login' ) ) );
+                $users = get_users( array(
+                        'fields' => array( 'user_login' ),
+                        'role'   => 'administrator',
+                ) );
                 if ( $users ) {
                         foreach ( $users as $user ) {
-                                if ( is_super_admin( $user->ID ) && !in_array( $user->user_login, $site_admins ) )
-                                        $site_admins[] = $user->user_login;
+                                $site_admins[] = $user->user_login;
                         }
+
+                        $site_admins = array_unique( $site_admins );
                 }
         } else {
                 $site_admins = get_site_option( 'site_admins' );

src/wp-admin/includes/template.php

@@ -1161 +1161 @@
                                         }
                                         ?>
                                         <li class="control-section accordion-section <?php echo $hidden_class; ?> <?php echo $open_class; ?> <?php echo esc_attr( $box['id'] ); ?>" id="<?php echo esc_attr( $box['id'] ); ?>">
-                                                <h3 class="accordion-section-title hndle" tabindex="0">
+                                                <button type="button" class="handlediv button-link" aria-expanded="true">
+                                                        <span class="screen-reader-text"><?php echo sprintf( __( 'Toggle panel: %s' ), esc_html( $box['title'] ) ); ?></span>
+                                                        <span class="sidebar-name-arrow" aria-hidden="true"></span>
+                                                </button>
+                                                <h3 class="accordion-section-title hndle">
                                                         <?php echo esc_html( $box['title'] ); ?>
-                                                        <span class="screen-reader-text"><?php _e( 'Press return or enter to open this section' ); ?></span>
                                                 </h3>
                                                 <div class="accordion-section-content <?php postbox_classes( $box['id'], $page ); ?>">
                                                         <div class="inside">

src/wp-admin/includes/widgets.php

@@ -80 +80 @@
         if ( $sidebar_name ) {
                 ?>
                 <div class="sidebar-name">
-                        <div class="sidebar-name-arrow"><br /></div>
+                        <button type="button" class="handlediv button-link" aria-expanded="true">
+                                <span class="screen-reader-text"><?php echo sprintf( __( 'Toggle panel: %s' ), $sidebar_name ); ?></span>
+                                <span class="sidebar-name-arrow" aria-hidden="true"></span>
+                        </button>
                         <h2><?php echo esc_html( $sidebar_name ); ?> <span class="spinner"></span></h2>
                 </div>
                 <?php
@@ -219 +222 @@
         echo $sidebar_args['before_widget']; ?>
         <div class="widget-top">
         <div class="widget-title-action">
-                <a class="widget-action hide-if-no-js" href="#available-widgets"></a>
+                <button type="button" class="widget-action hide-if-no-js" aria-expanded="false">
+                        <span class="screen-reader-text"><?php printf( __( 'Edit widget: %s' ), $widget_title ); ?></span>
+                        <span class="toggle-indicator" aria-hidden="true"></span>
+                </button>
                 <a class="widget-control-edit hide-if-js" href="<?php echo esc_url( add_query_arg( $query_arg ) ); ?>">
                         <span class="edit"><?php _ex( 'Edit', 'widget' ); ?></span>
                         <span class="add"><?php _ex( 'Add', 'widget' ); ?></span>
@@ -250 +256 @@
 
         <div class="widget-control-actions">
                 <div class="alignleft">
-                <a class="widget-control-remove" href="#remove"><?php _e('Delete'); ?></a> |
-                <a class="widget-control-close" href="#close"><?php _e('Close'); ?></a>
+                        <button type="button" class="button-link button-link-delete widget-control-remove"><?php _e( 'Delete' ); ?></button> |
+                        <button type="button" class="button-link widget-control-close"><?php _e( 'Close' ); ?></button>
                 </div>
                 <div class="alignright<?php if ( 'noform' === $has_form ) echo ' widget-control-noform'; ?>">
                         <?php submit_button( __( 'Save' ), 'primary widget-control-save right', 'savewidget', false, array( 'id' => 'widget-' . esc_attr( $id_format ) . '-savewidget' ) ); ?>

src/wp-admin/js/accordion.js

@@ -33 +33 @@
         $( document ).ready( function () {
 
                 // Expand/Collapse accordion sections on click.
-                $( '.accordion-container' ).on( 'click keydown', '.accordion-section-title', function( e ) {
+                $( '.accordion-container' ).on( 'click keydown', '.accordion-section-title, .handlediv', function( e ) {
                         if ( e.type === 'keydown' && 13 !== e.which ) { // "return" key
                                 return;
                         }

src/wp-admin/js/customize-controls.js

@@ -4762 +4762 @@
                          */
                         populateChangesetUuidParam = function( isIncluded ) {
                                 var urlParser, queryParams;
+
+                                // Abort on IE9 which doesn't support history management.
+                                if ( ! history.replaceState ) {
+                                        return;
+                                }
+
                                 urlParser = document.createElement( 'a' );
                                 urlParser.href = location.href;
                                 queryParams = api.utils.parseQueryString( urlParser.search.substr( 1 ) );
@@ -4780 +4786 @@
                                 history.replaceState( {}, document.title, urlParser.href );
                         };
 
-                        if ( history.replaceState ) {
-                                changesetStatus.bind( function( newStatus ) {
-                                        populateChangesetUuidParam( '' !== newStatus && 'publish' !== newStatus );
-                                } );
-                        }
+                        changesetStatus.bind( function( newStatus ) {
+                                populateChangesetUuidParam( '' !== newStatus && 'publish' !== newStatus );
+                        } );
 
                         // Expose states to the API.
                         api.state = state;

src/wp-admin/js/customize-widgets.js

@@ -952 +952 @@
                         var self = this, $removeBtn, replaceDeleteWithRemove;
 
                         // Configure remove button
-                        $removeBtn = this.container.find( 'a.widget-control-remove' );
+                        $removeBtn = this.container.find( '.widget-control-remove' );
                         $removeBtn.on( 'click', function( e ) {
                                 e.preventDefault();
 
@@ -988 +988 @@
                         } );
 
                         replaceDeleteWithRemove = function() {
-                                $removeBtn.text( l10n.removeBtnLabel ); // wp_widget_control() outputs the link as "Delete"
+                                $removeBtn.text( l10n.removeBtnLabel ); // wp_widget_control() outputs the button as "Delete"
                                 $removeBtn.attr( 'title', l10n.removeBtnTooltip );
                         };
 
@@ -1367 +1367 @@
                  * @param {Object} args  merged on top of this.defaultActiveArguments
                  */
                 onChangeExpanded: function ( expanded, args ) {
-                        var self = this, $widget, $inside, complete, prevComplete, expandControl;
+                        var self = this, $widget, $inside, complete, prevComplete, expandControl, $toggleBtn;
 
                         self.embedWidgetControl(); // Make sure the outer form is embedded so that the expanded state can be set in the UI.
                         if ( expanded ) {
@@ -1386 +1386 @@
 
                         $widget = this.container.find( 'div.widget:first' );
                         $inside = $widget.find( '.widget-inside:first' );
+                        $toggleBtn = this.container.find( '.widget-top button.widget-action' );
 
                         expandControl = function() {
 
@@ -1399 +1400 @@
                                 complete = function() {
                                         self.container.removeClass( 'expanding' );
                                         self.container.addClass( 'expanded' );
+                                        $toggleBtn.attr( 'aria-expanded', 'true' );
                                         self.container.trigger( 'expanded' );
                                 };
                                 if ( args.completeCallback ) {
@@ -1428 +1430 @@
                                         expandControl();
                                 }
                         } else {
-
                                 complete = function() {
                                         self.container.removeClass( 'collapsing' );
                                         self.container.removeClass( 'expanded' );
+                                        $toggleBtn.attr( 'aria-expanded', 'false' );
                                         self.container.trigger( 'collapsed' );
                                 };
                                 if ( args.completeCallback ) {

src/wp-admin/js/editor.js

@@ +1 @@
+window.wp = window.wp || {};
+
+( function( $, wp ) {
+        wp.editor = wp.editor || {};
 
-( function( $ ) {
         /**
          * @summary Utility functions for the editor.
          *
@@ -484 +487 @@
                         } );
                 }
 
-                window.wp = window.wp || {};
-                window.wp.editor = window.wp.editor || {};
-                window.wp.editor.autop = wpautop;
-                window.wp.editor.removep = pre_wpautop;
+                wp.editor.autop = wpautop;
+                wp.editor.removep = pre_wpautop;
 
                 exports = {
                         go: switchEditor,
@@ -505 +506 @@
          * Expose the switch editors to be used globally.
          */
         window.switchEditors = new SwitchEditors();
-}( window.jQuery ));
+
+        /**
+         * Initialize TinyMCE and/or Quicktags. For use with wp_enqueue_editor() (PHP).
+         *
+         * Intended for use with an existing textarea that will become the Text editor tab.
+         * The editor width will be the width of the textarea container, height will be adjustable.
+         *
+         * Settings for both TinyMCE and Quicktags can be passed on initialization, and are "filtered"
+         * with custom jQuery events on the document element, wp-before-tinymce-init and wp-before-quicktags-init.
+         *
+         * @since 4.8
+         *
+         * @param {string} id The HTML id of the textarea that is used for the editor.
+         *                    Has to be jQuery compliant. No brackets, special chars, etc.
+         * @param {object} settings Example:
+         * settings = {
+         *    // See https://www.tinymce.com/docs/configure/integration-and-setup/.
+         *    // Alternatively set to `true` to use the defaults.
+         *    tinymce: {
+         *        setup: function( editor ) {
+         *            console.log( 'Editor initialized', editor );
+         *        }
+         *    }
+         *
+         *    // Alternatively set to `true` to use the defaults.
+         *        quicktags: {
+         *        buttons: 'strong,em,link'
+         *    }
+         * }
+         */
+        wp.editor.initialize = function( id, settings ) {
+                var init;
+                var defaults;
+
+                if ( ! $ || ! id || ! wp.editor.getDefaultSettings ) {
+                        return;
+                }
+
+                defaults = wp.editor.getDefaultSettings();
+
+                // Initialize TinyMCE by default
+                if ( ! settings ) {
+                        settings = {
+                                tinymce: true
+                        };
+                }
+
+                // Add wrap and the Visual|Text tabs.
+                if ( settings.tinymce && settings.quicktags ) {
+                        var $textarea = $( '#' + id );
+                        var $wrap = $( '<div>' ).attr( {
+                                        'class': 'wp-core-ui wp-editor-wrap tmce-active',
+                                        id: 'wp-' + id + '-wrap'
+                                } );
+                        var $editorContainer = $( '<div class="wp-editor-container">' );
+                        var $button = $( '<button>' ).attr( {
+                                        type: 'button',
+                                        'data-wp-editor-id': id
+                                } );
+
+                        $wrap.append(
+                                $( '<div class="wp-editor-tools">' )
+                                        .append( $( '<div class="wp-editor-tabs">' )
+                                                .append( $button.clone().attr({
+                                                        id: id + '-tmce',
+                                                        'class': 'wp-switch-editor switch-tmce'
+                                                }).text( window.tinymce.translate( 'Visual' ) ) )
+                                                .append( $button.attr({
+                                                        id: id + '-html',
+                                                        'class': 'wp-switch-editor switch-html'
+                                                }).text( window.tinymce.translate( 'Text' ) ) )
+                                        ).append( $editorContainer )
+                        );
+
+                        $textarea.after( $wrap );
+                        $editorContainer.append( $textarea );
+                }
+
+                if ( window.tinymce && settings.tinymce ) {
+                        if ( typeof settings.tinymce !== 'object' ) {
+                                settings.tinymce = {};
+                        }
+
+                        init = $.extend( {}, defaults.tinymce, settings.tinymce );
+                        init.selector = '#' + id;
+
+                        $( document ).trigger( 'wp-before-tinymce-init', init );
+                        window.tinymce.init( init );
+
+                        if ( ! window.wpActiveEditor ) {
+                                window.wpActiveEditor = id;
+                        }
+                }
+
+                if ( window.quicktags && settings.quicktags ) {
+                        if ( typeof settings.quicktags !== 'object' ) {
+                                settings.quicktags = {};
+                        }
+
+                        init = $.extend( {}, defaults.quicktags, settings.quicktags );
+                        init.id = id;
+
+                        $( document ).trigger( 'wp-before-quicktags-init', init );
+                        window.quicktags( init );
+
+                        if ( ! window.wpActiveEditor ) {
+                                window.wpActiveEditor = init.id;
+                        }
+                }
+        };
+
+        /**
+         * Get the editor content.
+         *
+         * Intended for use with editors that were initialized with wp.editor.initialize().
+         *
+         * @since 4.8
+         *
+         * @param {string} id The HTML id of the editor textarea.
+         * @return The editor content.
+         */
+        wp.editor.getContent = function( id ) {
+                var editor;
+
+                if ( ! $ || ! id ) {
+                        return;
+                }
+
+                if ( window.tinymce ) {
+                        editor = window.tinymce.get( id );
+
+                        if ( editor && ! editor.isHidden() ) {
+                                editor.save();
+                        }
+                }
+
+                return $( '#' + id ).val();
+        };
+
+}( window.jQuery, window.wp ));

src/wp-admin/js/widgets.js

@@ -41 +41 @@
                 $(document.body).bind('click.widgets-toggle', function(e) {
                         var target = $(e.target),
                                 css = { 'z-index': 100 },
-                                widget, inside, targetWidth, widgetWidth, margin;
+                                widget, inside, targetWidth, widgetWidth, margin,
+                                toggleBtn = target.closest( '.widget' ).find( '.widget-top button.widget-action' );
 
                         if ( target.parents('.widget-top').length && ! target.parents('#available-widgets').length ) {
                                 widget = target.closest('div.widget');
@@ -60 +61 @@
                                                 css[ margin ] = widgetWidth - ( targetWidth + 30 ) + 'px';
                                                 widget.css( css );
                                         }
-                                        widget.addClass( 'open' );
-                                        inside.slideDown('fast');
+                                        /*
+                                         * Don't change the order of attributes changes and animation:
+                                         * it's important for screen readers, see ticket #31476.
+                                         */
+                                        toggleBtn.attr( 'aria-expanded', 'true' );
+                                        inside.slideDown( 'fast', function() {
+                                                widget.addClass( 'open' );
+                                        });
                                 } else {
-                                        inside.slideUp('fast', function() {
+                                        /*
+                                         * Don't change the order of attributes changes and animation:
+                                         * it's important for screen readers, see ticket #31476.
+                                         */
+                                        toggleBtn.attr( 'aria-expanded', 'false' );
+                                        inside.slideUp( 'fast', function() {
                                                 widget.attr( 'style', '' );
                                                 widget.removeClass( 'open' );
                                         });
@@ -78 +90 @@
                         } else if ( target.hasClass('widget-control-close') ) {
                                 widget = target.closest('div.widget');
                                 widget.removeClass( 'open' );
+                                toggleBtn.attr( 'aria-expanded', 'false' );
                                 wpWidgets.close( widget );
                                 e.preventDefault();
                         } else if ( target.attr( 'id' ) === 'inactive-widgets-control-remove' ) {
@@ -92 +105 @@
                         wpWidgets.appendTitle( this );
 
                         if ( $this.find( 'p.widget-error' ).length ) {
-                                $this.find( 'a.widget-action' ).trigger('click');
+                                $this.find( '.widget-action' ).trigger( 'click' ).attr( 'aria-expanded', 'true' );
                         }
                 });
 
@@ -182 +195 @@
 
                                 if ( inside.css('display') === 'block' ) {
                                         ui.item.removeClass('open');
+                                        ui.item.find( '.widget-top button.widget-action' ).attr( 'aria-expanded', 'false' );
                                         inside.hide();
                                         $(this).sortable('refreshPositions');
                                 }
@@ -254 +268 @@
                                 }
 
                                 if ( addNew ) {
-                                        $widget.find( 'a.widget-action' ).trigger('click');
+                                        $widget.find( '.widget-action' ).trigger( 'click' );
                                 } else {
                                         wpWidgets.saveOrder( $sidebar.attr('id') );
                                 }
@@ -492 +506 @@
 
         close : function(widget) {
                 widget.children('.widget-inside').slideUp('fast', function() {
-                        widget.attr( 'style', '' );
+                        widget.attr( 'style', '' )
+                                .find( '.widget-top button.widget-action' )
+                                        .attr( 'aria-expanded', 'false' )
+                                        .focus();
                 });
         },
 

src/wp-admin/network/menu.php

@@ -19 +19 @@
         $submenu['index.php'][10] = array( __( 'Updates' ), 'update_core', 'update-core.php' );
 }
 
-$submenu['index.php'][15] = array( __( 'Upgrade Network' ), 'manage_network', 'upgrade.php' );
+$submenu['index.php'][15] = array( __( 'Upgrade Network' ), 'upgrade_network', 'upgrade.php' );
 
 $menu[4] = array( '', 'read', 'separator1', '', 'wp-menu-separator' );
 

src/wp-admin/network/site-new.php

@@ -13 +13 @@
 /** WordPress Translation Install API */
 require_once( ABSPATH . 'wp-admin/includes/translation-install.php' );
 
-if ( ! current_user_can( 'manage_sites' ) )
+if ( ! current_user_can( 'create_sites' ) ) {
         wp_die( __( 'Sorry, you are not allowed to add sites to this network.' ) );
+}
 
 get_current_screen()->add_help_tab( array(
         'id'      => 'overview',

src/wp-admin/network/upgrade.php

@@ -32 +32 @@
 
 require_once( ABSPATH . 'wp-admin/admin-header.php' );
 
-if ( ! current_user_can( 'manage_network' ) )
+if ( ! current_user_can( 'upgrade_network' ) ) {
         wp_die( __( 'Sorry, you are not allowed to access this page.' ), 403 );
+}
 
 echo '<div class="wrap">';
 echo '<h1>' . __( 'Upgrade Network' ) . '</h1>';

src/wp-admin/options-reading.php

@@ -22 +22 @@
         'title'   => __('Overview'),
         'content' => '<p>' . __('This screen contains the settings that affect the display of your content.') . '</p>' .
                 '<p>' . sprintf(__('You can choose what&#8217;s displayed on the front page of your site. It can be posts in reverse chronological order (classic blog), or a fixed/static page. To set a static home page, you first need to create two <a href="%s">Pages</a>. One will become the front page, and the other will be where your posts are displayed.'), 'post-new.php?post_type=page') . '</p>' .
-                '<p>' . __('You can also control the display of your content in RSS feeds, including the maximum numbers of posts to display and whether to show full text or a summary.') . '</p>' .
+                '<p>' . __('You can also control the display of your content in RSS feeds, including the maximum number of posts to display and whether to show full text or a summary.') . '</p>' .
                 '<p>' . __('You must click the Save Changes button at the bottom of the screen for new settings to take effect.') . '</p>',
 ) );
 

src/wp-admin/widgets.php

@@ -387 +387 @@
 <div id="widgets-left">
         <div id="available-widgets" class="widgets-holder-wrap">
                 <div class="sidebar-name">
-                        <div class="sidebar-name-arrow"><br /></div>
+                        <button type="button" class="handlediv button-link" aria-expanded="true">
+                                <span class="screen-reader-text">Toggle panel: <?php _e( 'Available Widgets' ); ?></span>
+                                <span class="sidebar-name-arrow" aria-hidden="true"></span>
+                        </button>
                         <h2><?php _e( 'Available Widgets' ); ?> <span id="removing-widget"><?php _ex( 'Deactivate', 'removing-widget' ); ?> <span></span></span></h2>
                 </div>
                 <div class="widget-holder">

src/wp-content/themes/twentyseventeen/README.txt

@@ -2 +2 @@
 Contributors: the WordPress team
 Requires at least: WordPress 4.7
 Tested up to: WordPress 4.7
-Version: 1.1
+Version: 1.2
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 Tags: one-column, two-columns, right-sidebar, flexible-header, accessibility-ready, custom-colors, custom-header, custom-menu, custom-logo, editor-style, featured-images, footer-widgets, post-formats, rtl-language-support, sticky-post, theme-options, threaded-comments, translation-ready
@@ -60 +60 @@
 
 == Changelog ==
 
+= 1.2 =
+* Released: April 18, 2017
+
+https://codex.wordpress.org/Twenty_Seventeen_Theme_Changelog#Version_1.2
+
 = 1.1 =
 * Released: January 6, 2017
 
-- Fix incorrect $content_width value in theme
-- Ensure functions in customize-controls.js don't count on Customizer sections always being present
-- Deprecate page_home nav menu item starter content in favor of link_home
-- Introduce a theme-specific filter twentyseventeen_starter_content for customizing the starter content array
+https://codex.wordpress.org/Twenty_Seventeen_Theme_Changelog#Version_1.1
 
 = 1.0 =
 * Released: December 6, 2016

src/wp-content/themes/twentyseventeen/footer.php

@@ -9 +9 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>

src/wp-content/themes/twentyseventeen/style.css

@@ -4 +4 @@
 Author: the WordPress team
 Author URI: https://wordpress.org/
 Description: Twenty Seventeen brings your site to life with header video and immersive featured images. With a focus on business sites, it features multiple sections on the front page as well as widgets, navigation and social menus, a logo, and more. Personalize its asymmetrical grid with a custom color scheme and showcase your multimedia content with post formats. Our default theme for 2017 works great in many languages, for any abilities, and on any device.
-Version: 1.1
+Version: 1.2
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 Text Domain: twentyseventeen
@@ -451 +451 @@
         font-weight: 300;
 }
 
-h2 {
+h2,
+.home.blog .entry-title {
         color: #666;
         font-size: 20px;
         font-size: 1.25rem;
@@ -3153 +3154 @@
         }
 
         h2,
+        .home.blog .entry-title,
         .page .panel-content .recent-posts .entry-title {
                 font-size: 26px;
                 font-size: 1.625rem;

src/wp-content/themes/twentyseventeen/template-parts/navigation/navigation-top.php

@@ -5 +5 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>

src/wp-content/themes/twentyseventeen/template-parts/post/content-audio.php

@@ -7 +7 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>
@@ -33 +33 @@
 
                         if ( is_single() ) {
                                 the_title( '<h1 class="entry-title">', '</h1>' );
+                        } elseif ( is_front_page() && is_home() ) {
+                                the_title( '<h3 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h3>' );
                         } else {
                                 the_title( '<h2 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h2>' );
                         }

src/wp-content/themes/twentyseventeen/template-parts/post/content-excerpt.php

@@ -9 +9 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>
@@ -30 +30 @@
                         </div><!-- .entry-meta -->
                 <?php endif; ?>
 
-                <?php the_title( sprintf( '<h2 class="entry-title"><a href="%s" rel="bookmark">', esc_url( get_permalink() ) ), '</a></h2>' ); ?>
+                <?php if ( is_front_page() && ! is_home() ) {
+
+                        // The excerpt is being displayed within a front page section, so it's a lower hierarchy than h2.
+                        the_title( sprintf( '<h3 class="entry-title"><a href="%s" rel="bookmark">', esc_url( get_permalink() ) ), '</a></h3>' );
+                } else {
+                        the_title( sprintf( '<h2 class="entry-title"><a href="%s" rel="bookmark">', esc_url( get_permalink() ) ), '</a></h2>' );
+                } ?>
         </header><!-- .entry-header -->
 
         <div class="entry-summary">

src/wp-content/themes/twentyseventeen/template-parts/post/content-gallery.php

@@ -7 +7 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>
@@ -33 +33 @@
 
                 if ( is_single() ) {
                         the_title( '<h1 class="entry-title">', '</h1>' );
+                } elseif ( is_front_page() && is_home() ) {
+                        the_title( '<h3 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h3>' );
                 } else {
                         the_title( '<h2 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h2>' );
                 }

src/wp-content/themes/twentyseventeen/template-parts/post/content-image.php

@@ -7 +7 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>
@@ -33 +33 @@
 
                         if ( is_single() ) {
                                 the_title( '<h1 class="entry-title">', '</h1>' );
+                        } elseif ( is_front_page() && is_home() ) {
+                                the_title( '<h3 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h3>' );
                         } else {
                                 the_title( '<h2 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h2>' );
                         }

src/wp-content/themes/twentyseventeen/template-parts/post/content-video.php

@@ -7 +7 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>
@@ -33 +33 @@
 
                         if ( is_single() ) {
                                 the_title( '<h1 class="entry-title">', '</h1>' );
+                        } elseif ( is_front_page() && is_home() ) {
+                                the_title( '<h3 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h3>' );
                         } else {
                                 the_title( '<h2 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h2>' );
                         }

src/wp-content/themes/twentyseventeen/template-parts/post/content.php

@@ -7 +7 @@
  * @package WordPress
  * @subpackage Twenty_Seventeen
  * @since 1.0
- * @version 1.0
+ * @version 1.2
  */
 
 ?>
@@ -33 +33 @@
 
                 if ( is_single() ) {
                         the_title( '<h1 class="entry-title">', '</h1>' );
+                } elseif ( is_front_page() && is_home() ) {
+                        the_title( '<h3 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h3>' );
                 } else {
                         the_title( '<h2 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h2>' );
                 }

src/wp-includes/capabilities.php

@@ -478 +478 @@
         case 'manage_network_plugins':
         case 'manage_network_themes':
         case 'manage_network_options':
+        case 'upgrade_network':
                 $caps[] = $cap;
                 break;
         case 'setup_network':

src/wp-includes/class-walker-nav-menu.php

@@ -58 +58 @@
                         $n = "\n";
                 }
                 $indent = str_repeat( $t, $depth );
-                $output .= "{$n}{$indent}<ul class=\"sub-menu\">{$n}";
+
+                /**
+                 * Filters the CSS class(es) applied to a menu list element.
+                 *
+                 * @since 4.8.0
+                 *
+                 * @param array    $classes The CSS classes that are applied to the menu `<ul>` element.
+                 * @param stdClass $args    An object of `wp_nav_menu()` arguments.
+                 * @param int      $depth   Depth of menu item. Used for padding.
+                 */
+
+                $classes = array( 'sub-menu' );
+                $classes = apply_filters( 'nav_menu_submenu_css_class', $classes, $args, $depth );
+                $class_names = join( ' ', $classes );
+
+                $output .= "{$n}{$indent}<ul class='" . esc_attr( $class_names ) . "'>{$n}";
         }
 
         /**

src/wp-includes/class-walker-page.php

@@ -160 +160 @@
                 $args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
                 $args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
 
+                $atts = array();
+                $atts['href'] = get_permalink( $page->ID );
+
+                /**
+                 * Filters the HTML attributes applied to a page menu item's anchor element.
+                 *
+                 * @since 4.8.0
+                 *
+                 * @param array $atts {
+                 *     The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
+                 *
+                 *     @type string $href The href attribute.
+                 * }
+                 * @param WP_Post $page         Page data object.
+                 * @param int     $depth        Depth of page, used for padding.
+                 * @param array   $args         An array of arguments.
+                 * @param int     $current_page ID of the current page.
+                 */
+                $atts = apply_filters( 'page_menu_link_attributes', $atts, $page, $depth, $args, $current_page );
+
+                $attributes = '';
+                foreach ( $atts as $attr => $value ) {
+                        if ( ! empty( $value ) ) {
+                                $value = esc_attr( $value );
+                                $attributes .= ' ' . $attr . '="' . $value . '"';
+                        }
+                }
+
                 $output .= $indent . sprintf(
-                        '<li class="%s"><a href="%s">%s%s%s</a>',
+                        '<li class="%s"><a%s>%s%s%s</a>',
                         $css_classes,
-                        get_permalink( $page->ID ),
+                        $attributes,
                         $args['link_before'],
                         /** This filter is documented in wp-includes/post-template.php */
                         apply_filters( 'the_title', $page->post_title, $page->ID ),

src/wp-includes/class-wp-editor.php

@@ -27 +27 @@
         private static $drag_drop_upload = false;
         private static $old_dfw_compat = false;
         private static $translation;
+        private static $tinymce_scripts_printed = false;
+        private static $link_dialog_printed = false;
 
         private function __construct() {}
 
@@ -350 +352 @@
                 if ( self::$this_tinymce ) {
 
                         if ( empty( self::$first_init ) ) {
-                                self::$baseurl = includes_url( 'js/tinymce' );
-
-                                $mce_locale = get_user_locale();
-                                self::$mce_locale = $mce_locale = empty( $mce_locale ) ? 'en' : strtolower( substr( $mce_locale, 0, 2 ) ); // ISO 639-1
-
-                                /** This filter is documented in wp-admin/includes/media.php */
-                                $no_captions = (bool) apply_filters( 'disable_captions', '' );
+                                $baseurl = self::get_baseurl();
+                                $mce_locale = self::get_mce_locale();
                                 $ext_plugins = '';
-                                $shortcut_labels = array();
-
-                                foreach ( self::get_translation() as $name => $value ) {
-                                        if ( is_array( $value ) ) {
-                                                $shortcut_labels[$name] = $value[1];
-                                        }
-                                }
 
                                 if ( $set['teeny'] ) {
 
@@ -376 +366 @@
                                          * @param array  $plugins   An array of teenyMCE plugins.
                                          * @param string $editor_id Unique editor identifier, e.g. 'content'.
                                          */
-                                        self::$plugins = $plugins = apply_filters( 'teeny_mce_plugins', array( 'colorpicker', 'lists', 'fullscreen', 'image', 'wordpress', 'wpeditimage', 'wplink' ), $editor_id );
+                                        $plugins = apply_filters( 'teeny_mce_plugins', array( 'colorpicker', 'lists', 'fullscreen', 'image', 'wordpress', 'wpeditimage', 'wplink' ), $editor_id );
                                 } else {
 
                                         /**
@@ -521 +511 @@
                                 self::$plugins = $plugins;
                                 self::$ext_plugins = $ext_plugins;
 
-                                self::$first_init = array(
-                                        'theme' => 'modern',
-                                        'skin' => 'lightgray',
-                                        'language' => self::$mce_locale,
-                                        'formats' => '{' .
-                                                'alignleft: [' .
-                                                        '{selector: "p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li", styles: {textAlign:"left"}},' .
-                                                        '{selector: "img,table,dl.wp-caption", classes: "alignleft"}' .
-                                                '],' .
-                                                'aligncenter: [' .
-                                                        '{selector: "p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li", styles: {textAlign:"center"}},' .
-                                                        '{selector: "img,table,dl.wp-caption", classes: "aligncenter"}' .
-                                                '],' .
-                                                'alignright: [' .
-                                                        '{selector: "p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li", styles: {textAlign:"right"}},' .
-                                                        '{selector: "img,table,dl.wp-caption", classes: "alignright"}' .
-                                                '],' .
-                                                'strikethrough: {inline: "del"}' .
-                                        '}',
-                                        'relative_urls' => false,
-                                        'remove_script_host' => false,
-                                        'convert_urls' => false,
-                                        'browser_spellcheck' => true,
-                                        'fix_list_elements' => true,
-                                        'entities' => '38,amp,60,lt,62,gt',
-                                        'entity_encoding' => 'raw',
-                                        'keep_styles' => false,
-                                        'cache_suffix' => 'wp-mce-' . $tinymce_version,
-
-                                        // Limit the preview styles in the menu/toolbar
-                                        'preview_styles' => 'font-family font-size font-weight font-style text-decoration text-transform',
-
-                                        'end_container_on_empty_block' => true,
-                                        'wpeditimage_disable_captions' => $no_captions,
-                                        'wpeditimage_html5_captions' => current_theme_supports( 'html5', 'caption' ),
-                                        'plugins' => implode( ',', $plugins ),
-                                        'wp_lang_attr' => get_bloginfo( 'language' ),
-                                        'wp_shortcut_labels' => wp_json_encode( $shortcut_labels ),
-                                );
+                                $settings = self::default_settings();
+                                $settings['plugins'] = implode( ',', $plugins );
 
                                 if ( ! empty( $mce_external_plugins ) ) {
-                                        self::$first_init['external_plugins'] = wp_json_encode( $mce_external_plugins );
+                                        $settings['external_plugins'] = wp_json_encode( $mce_external_plugins );
                                 }
 
-                                $suffix = SCRIPT_DEBUG ? '' : '.min';
-                                $version = 'ver=' . get_bloginfo( 'version' );
-                                $dashicons = includes_url( "css/dashicons$suffix.css?$version" );
-
-                                // WordPress default stylesheet and dashicons
-                                $mce_css = array(
-                                        $dashicons,
-                                        self::$baseurl . '/skins/wordpress/wp-content.css?' . $version
-                                );
+                                /** This filter is documented in wp-admin/includes/media.php */
+                                if ( apply_filters( 'disable_captions', '' ) ) {
+                                        $settings['wpeditimage_disable_captions'] = true;
+                                }
 
+                                $mce_css = $settings['content_css'];
                                 $editor_styles = get_editor_stylesheets();
+
                                 if ( ! empty( $editor_styles ) ) {
-                                        foreach ( $editor_styles as $style ) {
-                                                $mce_css[] = $style;
-                                        }
+                                        $mce_css .= ',' . implode( ',', $editor_styles );
                                 }
 
                                 /**
@@ -589 +537 @@
                                  *
                                  * @param string $stylesheets Comma-delimited list of stylesheets.
                                  */
-                                $mce_css = trim( apply_filters( 'mce_css', implode( ',', $mce_css ) ), ' ,' );
+                                $mce_css = trim( apply_filters( 'mce_css', $mce_css ), ' ,' );
 
-                                if ( ! empty($mce_css) )
-                                        self::$first_init['content_css'] = $mce_css;
+                                if ( ! empty( $mce_css ) ) {
+                                        $settings['content_css'] = $mce_css;
+                                } else {
+                                        unset( $settings['content_css'] );
+                                }
+
+                                self::$first_init = $settings;
                         }
 
                         if ( $set['teeny'] ) {
@@ -690 +643 @@
 
                         $body_class .= ' locale-' . sanitize_html_class( strtolower( str_replace( '_', '-', get_user_locale() ) ) );
 
-                        if ( !empty($set['tinymce']['body_class']) ) {
+                        if ( ! empty( $set['tinymce']['body_class'] ) ) {
                                 $body_class .= ' ' . $set['tinymce']['body_class'];
-                                unset($set['tinymce']['body_class']);
+                                unset( $set['tinymce']['body_class'] );
                         }
 
                         $mceInit = array (
                                 'selector' => "#$editor_id",
-                                'resize' => 'vertical',
-                                'menubar' => false,
                                 'wpautop' => (bool) $set['wpautop'],
                                 'indent' => ! $set['wpautop'],
-                                'toolbar1' => implode($mce_buttons, ','),
-                                'toolbar2' => implode($mce_buttons_2, ','),
-                                'toolbar3' => implode($mce_buttons_3, ','),
-                                'toolbar4' => implode($mce_buttons_4, ','),
+                                'toolbar1' => implode( ',', $mce_buttons ),
+                                'toolbar2' => implode( ',', $mce_buttons_2 ),
+                                'toolbar3' => implode( ',', $mce_buttons_3 ),
+                                'toolbar4' => implode( ',', $mce_buttons_4 ),
                                 'tabfocus_elements' => $set['tabfocus_elements'],
                                 'body_class' => $body_class
                         );
@@ -762 +713 @@
          * @param array $init
          * @return string
          */
-        private static function _parse_init($init) {
+        private static function _parse_init( $init ) {
                 $options = '';
 
-                foreach ( $init as $k => $v ) {
-                        if ( is_bool($v) ) {
-                                $val = $v ? 'true' : 'false';
-                                $options .= $k . ':' . $val . ',';
+                foreach ( $init as $key => $value ) {
+                        if ( is_bool( $value ) ) {
+                                $val = $value ? 'true' : 'false';
+                                $options .= $key . ':' . $val . ',';
                                 continue;
-                        } elseif ( !empty($v) && is_string($v) && ( ('{' == $v{0} && '}' == $v{strlen($v) - 1}) || ('[' == $v{0} && ']' == $v{strlen($v) - 1}) || preg_match('/^\(?function ?\(/', $v) ) ) {
-                                $options .= $k . ':' . $v . ',';
+                        } elseif ( ! empty( $value ) && is_string( $value ) && (
+                                ( '{' == $value{0} && '}' == $value{strlen( $value ) - 1} ) ||
+                                ( '[' == $value{0} && ']' == $value{strlen( $value ) - 1} ) ||
+                                preg_match( '/^\(?function ?\(/', $value ) ) ) {
+
+                                $options .= $key . ':' . $value . ',';
                                 continue;
                         }
-                        $options .= $k . ':"' . $v . '",';
+                        $options .= $key . ':"' . $value . '",';
                 }
 
                 return '{' . trim( $options, ' ,' ) . '}';
@@ -784 +739 @@
          *
          * @static
          */
-        public static function enqueue_scripts() {
-                if ( self::$has_tinymce )
-                        wp_enqueue_script('editor');
+        public static function enqueue_scripts( $default_scripts = false ) {
+                if ( $default_scripts || self::$has_tinymce ) {
+                        wp_enqueue_script( 'editor' );
+                }
 
-                if ( self::$has_quicktags ) {
+                if ( $default_scripts || self::$has_quicktags ) {
                         wp_enqueue_script( 'quicktags' );
                         wp_enqueue_style( 'buttons' );
                 }
 
-                if ( in_array('wplink', self::$plugins, true) || in_array('link', self::$qt_buttons, true) ) {
-                        wp_enqueue_script('wplink');
+                if ( $default_scripts || in_array( 'wplink', self::$plugins, true ) || in_array( 'link', self::$qt_buttons, true ) ) {
+                        wp_enqueue_script( 'wplink' );
                         wp_enqueue_script( 'jquery-ui-autocomplete' );
                 }
 
                 if ( self::$old_dfw_compat ) {
-                        wp_enqueue_script('wp-fullscreen-stub');
+                        wp_enqueue_script( 'wp-fullscreen-stub' );
                 }
 
                 if ( self::$has_medialib ) {
                         add_thickbox();
                         wp_enqueue_script( 'media-upload' );
                         wp_enqueue_script( 'wp-embed' );
+                } elseif ( $default_scripts ) {
+                        wp_enqueue_script( 'media-upload' );
                 }
 
                 /**
@@ -817 +775 @@
                  *                       and Quicktags are being loaded.
                  */
                 do_action( 'wp_enqueue_editor', array(
-                        'tinymce'   => self::$has_tinymce,
-                        'quicktags' => self::$has_quicktags,
+                        'tinymce'   => ( $default_scripts || self::$has_tinymce ),
+                        'quicktags' => ( $default_scripts || self::$has_quicktags ),
+                ) );
+        }
+
+        /**
+         * Enqueue all editor scripts.
+         * For use when the editor is going to be initialized after page load.
+         *
+         * @since 4.8.0
+         */
+        public static function enqueue_default_editor() {
+                // We are past the point where scripts can be enqueued properly.
+                if ( did_action( 'wp_enqueue_editor' ) ) {
+                        return;
+                }
+
+                self::enqueue_scripts( true );
+
+                // Also add wp-includes/css/editor.css
+                wp_enqueue_style( 'editor-buttons' );
+
+                if ( is_admin() ) {
+                        add_action( 'admin_print_footer_scripts', array( __CLASS__, 'print_default_editor_scripts' ), 45 );
+                } else {
+                        add_action( 'wp_print_footer_scripts', array( __CLASS__, 'print_default_editor_scripts' ), 45 );
+                }
+        }
+
+        /**
+         * Print (output) all editor scripts and default settings.
+         * For use when the editor is going to be initialized after page load.
+         *
+         * @since 4.8.0
+         *
+         */
+        public static function print_default_editor_scripts() {
+                $settings = self::default_settings();
+
+                $settings['toolbar1'] = 'bold,italic,bullist,numlist,link';
+                $settings['wpautop'] = false;
+                $settings['indent'] = true;
+                $settings['elementpath'] = false;
+
+                // In production all plugins are loaded (they are in wp-editor.js.gz)
+                // but only these will be initialized by default.
+                $settings['plugins'] = implode( ',', array(
+                        'charmap',
+                        'colorpicker',
+                        'hr',
+                        'lists',
+        //              'media',
+                        'paste',
+                        'tabfocus',
+                        'textcolor',
+                        'fullscreen',
+                        'wordpress',
+                        'wpautoresize',
+                        'wpeditimage',
+                        'wpemoji',
+                        'wpgallery',
+                        'wplink',
+        //              'wpdialogs',
+                        'wptextpattern',
+        //              'wpview',
                 ) );
+
+                $settings = self::_parse_init( $settings );
+
+                $suffix = SCRIPT_DEBUG ? '' : '.min';
+                $baseurl = self::get_baseurl();
+
+                ?>
+                <script type="text/javascript">
+                window.wp = window.wp || {};
+                window.wp.editor = window.wp.editor || {};
+                window.wp.editor.getDefaultSettings = function() {
+                        return {
+                                tinymce: <?php echo $settings; ?>,
+                                quicktags: {
+                                        buttons: 'strong,em,link,ul,ol,li,code'
+                                }
+                        };
+                };
+
+                var tinyMCEPreInit = {
+                        baseURL: "<?php echo $baseurl; ?>",
+                        suffix: "<?php echo $suffix; ?>",
+                        mceInit: {},
+                        qtInit: {},
+                        load_ext: function(url,lang){var sl=tinymce.ScriptLoader;sl.markDone(url+'/langs/'+lang+'.js');sl.markDone(url+'/langs/'+lang+'_dlg.js');}
+                };
+                </script>
+                <?php
+
+                self::print_tinymce_scripts();
+
+                /**
+                 * Fires when the editor scripts are loaded for later initialization,
+                 * after all scripts and settings are printed.
+                 *
+                 * @since 4.8.0
+                 */
+                do_action( 'print_default_editor_scripts' );
+
+                self::wp_link_dialog();
+        }
+
+        public static function get_mce_locale() {
+                if ( empty( self::$mce_locale ) ) {
+                        $mce_locale = get_user_locale();
+                        self::$mce_locale = empty( $mce_locale ) ? 'en' : strtolower( substr( $mce_locale, 0, 2 ) ); // ISO 639-1
+                }
+
+                return self::$mce_locale;
+        }
+
+        public static function get_baseurl() {
+                if ( empty( self::$baseurl ) ) {
+                        self::$baseurl = includes_url( 'js/tinymce' );
+                }
+
+                return self::$baseurl;
+        }
+
+        /**
+         * Returns the default TinyMCE settings.
+         * Doesn't include plugins, buttons, editor selector.
+         *
+         * @return array
+         */
+        private static function default_settings() {
+                global $tinymce_version;
+
+                $shortcut_labels = array();
+
+                foreach ( self::get_translation() as $name => $value ) {
+                        if ( is_array( $value ) ) {
+                                $shortcut_labels[$name] = $value[1];
+                        }
+                }
+
+                $settings = array(
+                        'theme' => 'modern',
+                        'skin' => 'lightgray',
+                        'language' => self::get_mce_locale(),
+                        'formats' => '{' .
+                                'alignleft: [' .
+                                        '{selector: "p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li", styles: {textAlign:"left"}},' .
+                                        '{selector: "img,table,dl.wp-caption", classes: "alignleft"}' .
+                                '],' .
+                                'aligncenter: [' .
+                                        '{selector: "p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li", styles: {textAlign:"center"}},' .
+                                        '{selector: "img,table,dl.wp-caption", classes: "aligncenter"}' .
+                                '],' .
+                                'alignright: [' .
+                                        '{selector: "p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li", styles: {textAlign:"right"}},' .
+                                        '{selector: "img,table,dl.wp-caption", classes: "alignright"}' .
+                                '],' .
+                                'strikethrough: {inline: "del"}' .
+                        '}',
+                        'relative_urls' => false,
+                        'remove_script_host' => false,
+                        'convert_urls' => false,
+                        'browser_spellcheck' => true,
+                        'fix_list_elements' => true,
+                        'entities' => '38,amp,60,lt,62,gt',
+                        'entity_encoding' => 'raw',
+                        'keep_styles' => false,
+                        'cache_suffix' => 'wp-mce-' . $tinymce_version,
+                        'resize' => 'vertical',
+                        'menubar' => false,
+
+                        // Limit the preview styles in the menu/toolbar
+                        'preview_styles' => 'font-family font-size font-weight font-style text-decoration text-transform',
+
+                        'end_container_on_empty_block' => true,
+                        'wpeditimage_html5_captions' => true,
+                        'wp_lang_attr' => get_bloginfo( 'language' ),
+                        'wp_shortcut_labels' => wp_json_encode( $shortcut_labels ),
+                );
+
+                $suffix = SCRIPT_DEBUG ? '' : '.min';
+                $version = 'ver=' . get_bloginfo( 'version' );
+
+                // Default stylesheets
+                $settings['content_css'] = includes_url( "css/dashicons$suffix.css?$version" ) . ',' .
+                        includes_url( "js/tinymce/skins/wordpress/wp-content.css?$version" );
+
+                return $settings;
         }
 
         private static function get_translation() {
@@ -1028 +1173 @@
 
                         /* translators: word count */
                         'Words: {0}' => sprintf( __( 'Words: %s' ), '{0}' ),
-                        'Paste is now in plain text mode. Contents will now be pasted as plain text until you toggle this option off.' => __( 'Paste is now in plain text mode. Contents will now be pasted as plain text until you toggle this option off.' ) . "\n\n" . __( 'If you&#8217;re looking to paste rich content from Microsoft Word, try turning this option off. The editor will clean up text pasted from Word automatically.' ),
-                        'Rich Text Area. Press ALT-F9 for menu. Press ALT-F10 for toolbar. Press ALT-0 for help' => __( 'Rich Text Area. Press Alt-Shift-H for help.' ),
+                        'Paste is now in plain text mode. Contents will now be pasted as plain text until you toggle this option off.' =>
+                                __( 'Paste is now in plain text mode. Contents will now be pasted as plain text until you toggle this option off.' ) . "\n\n" .
+                                __( 'If you&#8217;re looking to paste rich content from Microsoft Word, try turning this option off. The editor will clean up text pasted from Word automatically.' ),
+                        'Rich Text Area. Press ALT-F9 for menu. Press ALT-F10 for toolbar. Press ALT-0 for help' =>
+                                __( 'Rich Text Area. Press Alt-Shift-H for help.' ),
                         'Rich Text Area. Press Control-Option-H for help.' => __( 'Rich Text Area. Press Control-Option-H for help.' ),
-                        'You have unsaved changes are you sure you want to navigate away?' => __( 'The changes you made will be lost if you navigate away from this page.' ),
-                        'Your browser doesn\'t support direct access to the clipboard. Please use the Ctrl+X/C/V keyboard shortcuts instead.' => __( 'Your browser does not support direct access to the clipboard. Please use keyboard shortcuts or your browser&#8217;s edit menu instead.' ),
+                        'You have unsaved changes are you sure you want to navigate away?' =>
+                                __( 'The changes you made will be lost if you navigate away from this page.' ),
+                        'Your browser doesn\'t support direct access to the clipboard. Please use the Ctrl+X/C/V keyboard shortcuts instead.' =>
+                                __( 'Your browser does not support direct access to the clipboard. Please use keyboard shortcuts or your browser&#8217;s edit menu instead.' ),
 
                         // TinyMCE menus
                         'Insert' => _x( 'Insert', 'TinyMCE menu' ),
@@ -1055 +1205 @@
                         'Paste URL or type to search' => __( 'Paste URL or type to search' ), // Placeholder for the inline link dialog
                         'Apply'  => __( 'Apply' ), // Tooltip for the 'apply' button in the inline link dialog
                         'Link options'  => __( 'Link options' ), // Tooltip for the 'link options' button in the inline link dialog
+                        'Visual' => __( 'Visual' ), // Editor switch tab label
+                        'Text' => __( 'Text' ), // Editor switch tab label
 
                         // Shortcuts help modal
                         'Keyboard Shortcuts' => array( __( 'Keyboard Shortcuts' ), 'accessH' ),
@@ -1098 +1250 @@
         }
 
         /**
-         * Translates the default TinyMCE strings and returns them as JSON encoded object ready to be loaded with tinymce.addI18n().
-         * Can be used directly (_WP_Editors::wp_mce_translation()) by passing the same locale as set in the TinyMCE init object.
+         * Translates the default TinyMCE strings and returns them as JSON encoded object ready to be loaded with tinymce.addI18n(),
+         * or as JS snippet that should run after tinymce.js is loaded.
          *
          * @static
          * @param string $mce_locale The locale used for the editor.
@@ -1108 +1260 @@
          */
         public static function wp_mce_translation( $mce_locale = '', $json_only = false ) {
                 if ( ! $mce_locale ) {
-                        $mce_locale = self::$mce_locale;
+                        $mce_locale = self::get_mce_locale();
                 }
 
                 $mce_translation = self::get_translation();
-                
+
                 foreach ( $mce_translation as $name => $value ) {
                         if ( is_array( $value ) ) {
                                 $mce_translation[$name] = $value[0];
@@ -1150 +1302 @@
                         return wp_json_encode( $mce_translation );
                 }
 
-                $baseurl = self::$baseurl ? self::$baseurl : includes_url( 'js/tinymce' );
+                $baseurl = self::get_baseurl();
 
                 return "tinymce.addI18n( '$mce_locale', " . wp_json_encode( $mce_translation ) . ");\n" .
                         "tinymce.ScriptLoader.markDone( '$baseurl/langs/$mce_locale.js' );\n";
         }
 
         /**
+         * Print (output) the main TinyMCE scripts.
+         *
+         * @since 4.8
          *
          * @static
          * @global string $tinymce_version
          * @global bool   $concatenate_scripts
          * @global bool   $compress_scripts
          */
-        public static function editor_js() {
+        public static function print_tinymce_scripts() {
                 global $tinymce_version, $concatenate_scripts, $compress_scripts;
 
-                /**
-                 * Filters "tiny_mce_version" is deprecated
-                 *
-                 * The tiny_mce_version filter is not needed since external plugins are loaded directly by TinyMCE.
-                 * These plugins can be refreshed by appending query string to the URL passed to "mce_external_plugins" filter.
-                 * If the plugin has a popup dialog, a query string can be added to the button action that opens it (in the plugin's code).
-                 */
-                $version = 'ver=' . $tinymce_version;
-                $tmce_on = !empty(self::$mce_settings);
+                if ( self::$tinymce_scripts_printed ) {
+                        return;
+                }
+
+                self::$tinymce_scripts_printed = true;
 
-                if ( ! isset($concatenate_scripts) )
+                if ( ! isset( $concatenate_scripts ) ) {
                         script_concat_settings();
+                }
+
+                $suffix = SCRIPT_DEBUG ? '' : '.min';
+                $version = 'ver=' . $tinymce_version;
+                $baseurl = self::get_baseurl();
 
                 $compressed = $compress_scripts && $concatenate_scripts && isset($_SERVER['HTTP_ACCEPT_ENCODING'])
                         && false !== stripos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip');
 
+                // Load tinymce.js when running from /src, else load wp-tinymce.js.gz (production) or tinymce.min.js (SCRIPT_DEBUG)
+                $mce_suffix = false !== strpos( get_bloginfo( 'version' ), '-src' ) ? '' : '.min';
+
+                if ( $compressed ) {
+                        echo "<script type='text/javascript' src='{$baseurl}/wp-tinymce.php?c=1&amp;$version'></script>\n";
+                } else {
+                        echo "<script type='text/javascript' src='{$baseurl}/tinymce{$mce_suffix}.js?$version'></script>\n";
+                        echo "<script type='text/javascript' src='{$baseurl}/plugins/compat3x/plugin{$suffix}.js?$version'></script>\n";
+                }
+
+                echo "<script type='text/javascript'>\n" . self::wp_mce_translation() . "</script>\n";
+        }
+
+        /**
+         * Print (output) the TinyMCE configuration and initialization scripts.
+         *
+         * @static
+         */
+        public static function editor_js() {
+                global $tinymce_version;
+
+                $tmce_on = ! empty( self::$mce_settings );
                 $mceInit = $qtInit = '';
+
                 if ( $tmce_on ) {
                         foreach ( self::$mce_settings as $editor_id => $init ) {
                                 $options = self::_parse_init( $init );
                                 $mceInit .= "'$editor_id':{$options},";
                         }
-                        $mceInit = '{' . trim($mceInit, ',') . '}';
+                        $mceInit = '{' . trim( $mceInit, ',' ) . '}';
                 } else {
                         $mceInit = '{}';
                 }
 
-                if ( !empty(self::$qt_settings) ) {
+                if ( ! empty( self::$qt_settings ) ) {
                         foreach ( self::$qt_settings as $editor_id => $init ) {
                                 $options = self::_parse_init( $init );
                                 $qtInit .= "'$editor_id':{$options},";
                         }
-                        $qtInit = '{' . trim($qtInit, ',') . '}';
+                        $qtInit = '{' . trim( $qtInit, ',' ) . '}';
                 } else {
                         $qtInit = '{}';
                 }
@@ -1210 +1389 @@
                 );
 
                 $suffix = SCRIPT_DEBUG ? '' : '.min';
+                $baseurl = self::get_baseurl();
+                $version = 'ver=' . $tinymce_version;
 
                 /**
                  * Fires immediately before the TinyMCE settings are printed.
@@ -1223 +1404 @@
 
                 <script type="text/javascript">
                 tinyMCEPreInit = {
-                        baseURL: "<?php echo self::$baseurl; ?>",
+                        baseURL: "<?php echo $baseurl; ?>",
                         suffix: "<?php echo $suffix; ?>",
                         <?php
 
@@ -1240 +1421 @@
                 </script>
                 <?php
 
-                $baseurl = self::$baseurl;
-                // Load tinymce.js when running from /src, else load wp-tinymce.js.gz (production) or tinymce.min.js (SCRIPT_DEBUG)
-                $mce_suffix = false !== strpos( get_bloginfo( 'version' ), '-src' ) ? '' : '.min';
-
                 if ( $tmce_on ) {
-                        if ( $compressed ) {
-                                echo "<script type='text/javascript' src='{$baseurl}/wp-tinymce.php?c=1&amp;$version'></script>\n";
-                        } else {
-                                echo "<script type='text/javascript' src='{$baseurl}/tinymce{$mce_suffix}.js?$version'></script>\n";
-                                echo "<script type='text/javascript' src='{$baseurl}/plugins/compat3x/plugin{$suffix}.js?$version'></script>\n";
-                        }
-
-                        echo "<script type='text/javascript'>\n" . self::wp_mce_translation() . "</script>\n";
+                        self::print_tinymce_scripts();
 
                         if ( self::$ext_plugins ) {
                                 // Load the old-format English strings to prevent unsightly labels in old style popups
@@ -1434 +1604 @@
          * @static
          */
         public static function wp_link_dialog() {
+                // Run once
+                if ( self::$link_dialog_printed ) {
+                        return;
+                }
+
+                self::$link_dialog_printed = true;
+
                 // display: none is required here, see #WP27605
                 ?>
                 <div id="wp-link-backdrop" style="display: none"></div>

src/wp-includes/class-wp-site.php

@@ -240 +240 @@
                         case 'siteurl':
                         case 'post_count':
                         case 'home':
+                        default: // Custom properties added by 'site_details' filter.
                                 if ( ! did_action( 'ms_loaded' ) ) {
                                         return null;
                                 }
+
                                 $details = $this->get_details();
-                                return $details->$key;
+                                if ( isset( $details->$key ) ) {
+                                        return $details->$key;
+                                }
                 }
 
                 return null;
@@ -275 +279 @@
                                         return false;
                                 }
                                 return true;
+                        default: // Custom properties added by 'site_details' filter.
+                                if ( ! did_action( 'ms_loaded' ) ) {
+                                        return false;
+                                }
+
+                                $details = $this->get_details();
+                                if ( isset( $details->$key ) ) {
+                                        return true;
+                                }
                 }
 
                 return false;

src/wp-includes/css/admin-bar.css

@@ -624 +624 @@
         -moz-osx-font-smoothing: grayscale;
 }
 
+/* The admin bar search field needs to reset many styles that might be inherited from the active Theme CSS. See ticket #40313. */
 #wpadminbar > #wp-toolbar > #wp-admin-bar-top-secondary > #wp-admin-bar-search #adminbarsearch input.adminbar-input {
+        display: inline-block;
+        float: none;
         position: relative;
         z-index: 30;
         font-size: 13px;
         font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
         line-height: 24px;
+        text-indent: 0;
         height: 24px;
         width: 24px;
         max-width: none;

src/wp-includes/css/buttons.css

@@ -242 +242 @@
 
 .wp-core-ui .button-link-delete:hover,
 .wp-core-ui .button-link-delete:focus {
-        color: #f00;
+        color: #dc3232;
 }
 
 .ie8 .wp-core-ui .button-link:focus {
@@ -411 +411 @@
                 vertical-align: inherit;
         }
 
+        .media-modal-content .media-toolbar-primary .media-button {
+                margin-top: 10px;
+                margin-left: 5px;
+        }
+
         /* Reset responsive styles on Log in button on iframed login form */
 
         .interim-login .button.button-large {

src/wp-includes/css/editor.css

@@ -608 +608 @@
 }
 
 /* Menubar */
-.mce-menubar {
+div.mce-menubar {
         border-color: #e5e5e5;
         background: #fff;
         border-width: 0px 0px 1px;
 }
 
-.mce-menubar .mce-menubtn {
-        margin: 2px;
-}
-
 .mce-menubar .mce-menubtn:hover,
 .mce-menubar .mce-menubtn.mce-active,
 .mce-menubar .mce-menubtn:focus {
@@ -1091 +1087 @@
 
 .wp-editor-container {
         clear: both;
+        border: 1px solid #e5e5e5;
 }
 
 .wp-editor-area {

src/wp-includes/css/media-views.css

@@ -242 +242 @@
         width: calc(48% - 12px);
 }
 
-.media-modal-content .attachments-browser .media-toolbar-secondary {
-        width: 66%;
-}
-
-.media-modal-content .media-toolbar-primary.search-form {
-        width: 33%;
-}
-
 .media-modal-content .media-toolbar-primary .media-button {
         float: right;
 }
@@ -279 +271 @@
         overflow: hidden;
 }
 
+.media-frame-toolbar .media-toolbar {
+        top: initial;
+        bottom: -45px;
+        height: auto;
+        overflow: initial;
+        border-top: 1px solid #ddd;
+}
+
+@media screen and (max-width: 782px) {
+        .media-frame-toolbar .media-toolbar {
+                bottom: -48px;
+        }
+}
+
 .media-toolbar-primary {
         float: right;
         height: 100%;
@@ -686 +692 @@
         overflow: auto;
         background: #fff;
         border-top: 1px solid #ddd;
-        border-bottom: 1px solid #ddd;
 }
 
 .media-frame-toolbar {
@@ -696 +701 @@
         bottom: 0;
         height: 60px;
         z-index: 100;
+        bottom: 60px;
+        height: auto;
 }
 
 .media-frame.hide-menu .media-frame-title,

src/wp-includes/customize/class-wp-customize-color-control.php

@@ -92 +92 @@
          */
         public function content_template() {
                 ?>
-                <# var defaultValue = '',
+                <# var defaultValue = '#RRGGBB', defaultValueAttr = '',
                         isHueSlider = data.mode === 'hue';
 
                 if ( data.defaultValue && ! isHueSlider ) {
@@ -101 +101 @@
                         } else {
                                 defaultValue = data.defaultValue;
                         }
-                        defaultValue = ' data-default-color=' + defaultValue; // Quotes added automatically.
+                        defaultValueAttr = ' data-default-color=' + defaultValue; // Quotes added automatically.
                 } #>
                 <label>
                         <# if ( data.label ) { #>
@@ -114 +114 @@
                                 <# if ( isHueSlider ) { #>
                                         <input class="color-picker-hue" type="text" data-type="hue" />
                                 <# } else { #>
-                                        <input class="color-picker-hex" type="text" maxlength="7" placeholder="<?php esc_attr_e( 'Hex Value' ); ?>" {{ defaultValue }} />
+                                        <input class="color-picker-hex" type="text" maxlength="7" placeholder="{{ defaultValue }}" {{ defaultValueAttr }} />
                                 <# } #>
                         </div>
                 </label>

src/wp-includes/general-template.php

@@ -3057 +3057 @@
 }
 
 /**
+ * Outputs the editor scripts, stylesheets, and default settings.
+ *
+ * The editor can be initialized when needed after page load.
+ * See wp.editor.initialize() in wp-admin/js/editor.js for initialization options.
+ *
+ * @uses _WP_Editors
+ * @since 4.8.0
+ */
+function wp_enqueue_editor() {
+        if ( ! class_exists( '_WP_Editors', false ) ) {
+                require( ABSPATH . WPINC . '/class-wp-editor.php' );
+        }
+
+        _WP_Editors::enqueue_default_editor();
+}
+
+/**
  * Retrieves the contents of the search WordPress query variable.
  *
  * The search query string is passed through esc_attr() to ensure that it is safe

src/wp-includes/js/mce-view.js

@@ -729 +729 @@
                                         $( node ).data( 'rendered', false );
                                         editor.dom.setAttrib( node, 'data-wpview-text', encodeURIComponent( text ) );
                                         wp.mce.views.createInstance( type, text, match.options, force ).render();
+
+                                        editor.selection.select( node );
+                                        editor.nodeChanged();
                                         editor.focus();
 
                                         return true;

src/wp-includes/js/swfupload/handlers.js

@@ -356 +356 @@
 
 // remember the last used image size, alignment and url
 jQuery(document).ready(function($){
-        $('input[type="radio"]', '#media-items').live('click', function(){
+        $( 'input[type="radio"]', '#media-items' ).on( 'click', function(){
                 var tr = $(this).closest('tr');
 
                 if ( $(tr).hasClass('align') )
@@ -365 +365 @@
                         setUserSetting('imgsize', $(this).val());
         });
 
-        $('button.button', '#media-items').live('click', function(){
+        $( 'button.button', '#media-items' ).on( 'click', function(){
                 var c = this.className || '';
                 c = c.match(/url([^ '"]+)/);
                 if ( c && c[1] ) {

src/wp-includes/js/tinymce/plugins/wordpress/plugin.js

@@ -992 +992 @@
 
                 function hide( event ) {
                         if ( activeToolbar ) {
-                                if ( activeToolbar.tempHide || event.type === 'hide' ) {
+                                if ( activeToolbar.tempHide || event.type === 'hide' || event.type === 'blur' ) {
                                         activeToolbar.hide();
                                         activeToolbar = false;
                                 } else if ( (

src/wp-includes/js/wp-a11y.js

@@ -4 +4 @@
         'use strict';
 
         var $containerPolite,
-                $containerAssertive;
+                $containerAssertive,
+                previousMessage = '';
 
         /**
          * Update the ARIA live notification area text node.
@@ -23 +24 @@
                 // Ensure only text is sent to screen readers.
                 message = $( '<p>' ).html( message ).text();
 
+                /*
+                 * Safari 10+VoiceOver don't announce repeated, identical strings. We use
+                 * a `no-break space` to force them to think identical strings are different.
+                 * See ticket #36853.
+                 */
+                if ( previousMessage === message ) {
+                        message = message + '\u00A0';
+                }
+
+                previousMessage = message;
+
                 if ( $containerAssertive && 'assertive' === ariaLive ) {
                         $containerAssertive.text( message );
                 } else if ( $containerPolite ) {

src/wp-includes/media.php

@@ -3324 +3324 @@
         /**
          * Allows showing or hiding the "Create Audio Playlist" button in the media library.
          *
-         * By default (if this filter returns `null`), a query will be run to
-         * determine whether the media library contains any audio items.  This
-         * query is expensive for large media libraries, so it may be desirable for
-         * sites to override this behavior.
+         * By default, the "Create Audio Playlist" button will always be shown in
+         * the media library.  If this filter returns `null`, a query will be run
+         * to determine whether the media library contains any audio items.  This
+         * was the default behavior prior to version 4.8.0, but this query is
+         * expensive for large media libraries.
          *
          * @since 4.7.4
+         * @since 4.8.0 The filter's default value is `true` rather than `null`.
          *
          * @link https://core.trac.wordpress.org/ticket/31071
          *
-         * @return bool|null Whether to show the button, or `null` for default behavior.
+         * @param bool|null Whether to show the button, or `null` to decide based
+         *                  on whether any audio files exist in the media library.
          */
-        $has_audio = apply_filters( 'media_has_audio', null );
-        if ( is_null( $has_audio ) ) {
-                $has_audio = $wpdb->get_var( "
+        $show_audio_playlist = apply_filters( 'media_library_show_audio_playlist', true );
+        if ( null === $show_audio_playlist ) {
+                $show_audio_playlist = $wpdb->get_var( "
                         SELECT ID
                         FROM $wpdb->posts
                         WHERE post_type = 'attachment'
@@ -3349 +3352 @@
         /**
          * Allows showing or hiding the "Create Video Playlist" button in the media library.
          *
-         * By default (if this filter returns `null`), a query will be run to
-         * determine whether the media library contains any video items.  This
-         * query is expensive for large media libraries, so it may be desirable for
-         * sites to override this behavior.
+         * By default, the "Create Video Playlist" button will always be shown in
+         * the media library.  If this filter returns `null`, a query will be run
+         * to determine whether the media library contains any video items.  This
+         * was the default behavior prior to version 4.8.0, but this query is
+         * expensive for large media libraries.
          *
          * @since 4.7.4
+         * @since 4.8.0 The filter's default value is `true` rather than `null`.
          *
          * @link https://core.trac.wordpress.org/ticket/31071
          *
-         * @return bool|null Whether to show the button, or `null` for default behavior.
+         * @param bool|null Whether to show the button, or `null` to decide based
+         *                  on whether any video files exist in the media library.
          */
-        $has_video = apply_filters( 'media_has_video', null );
-        if ( is_null( $has_video ) ) {
-                $has_video = $wpdb->get_var( "
+        $show_video_playlist = apply_filters( 'media_library_show_video_playlist', true );
+        if ( null === $show_video_playlist ) {
+                $show_video_playlist = $wpdb->get_var( "
                         SELECT ID
                         FROM $wpdb->posts
                         WHERE post_type = 'attachment'
@@ -3383 +3389 @@
          *
          * @link https://core.trac.wordpress.org/ticket/31071
          *
-         * @return array|null An array of objects with `month` and `year`
-         *                    properties, or `null` (or any other non-array value)
-         *                    for default behavior.
+         * @param array|null An array of objects with `month` and `year`
+         *                   properties, or `null` (or any other non-array value)
+         *                   for default behavior.
          */
-        $months = apply_filters( 'media_months', null );
+        $months = apply_filters( 'media_library_months_with_files', null );
         if ( ! is_array( $months ) ) {
                 $months = $wpdb->get_results( $wpdb->prepare( "
                         SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
@@ -3414 +3420 @@
                 ),
                 'defaultProps' => $props,
                 'attachmentCounts' => array(
-                        'audio' => ( $has_audio ) ? 1 : 0,
-                        'video' => ( $has_video ) ? 1 : 0
+                        'audio' => ( $show_audio_playlist ) ? 1 : 0,
+                        'video' => ( $show_video_playlist ) ? 1 : 0,
                 ),
                 'embedExts'    => $exts,
                 'embedMimes'   => $ext_mimes,
                 'contentWidth' => $content_width,
                 'months'       => $months,
-                'mediaTrash'   => MEDIA_TRASH ? 1 : 0
+                'mediaTrash'   => MEDIA_TRASH ? 1 : 0,
         );
 
         $post = null;

src/wp-includes/ms-functions.php

@@ -2274 +2274 @@
  * Update the network-wide counts for the current network.
  *
  * @since 3.1.0
+ * @since 4.8.0 The $network_id parameter has been added.
+ *
+ * @param int|null $network_id ID of the network. Default is the current network.
  */
-function wp_update_network_counts() {
-        wp_update_network_user_counts();
-        wp_update_network_site_counts();
+function wp_update_network_counts( $network_id = null ) {
+        wp_update_network_user_counts( $network_id );
+        wp_update_network_site_counts( $network_id );
 }
 
 /**
@@ -2329 +2332 @@
  * Update the network-wide site count.
  *
  * @since 3.7.0
+ * @since 4.8.0 The $network_id parameter has been added.
  *
- * @global wpdb $wpdb WordPress database abstraction object.
+ * @param int|null $network_id ID of the network. Default is the current network.
  */
-function wp_update_network_site_counts() {
-        global $wpdb;
+function wp_update_network_site_counts( $network_id = null ) {
+        $network_id = (int) $network_id;
+        if ( ! $network_id ) {
+                $network_id = get_current_network_id();
+        }
 
         $count = get_sites( array(
-                'network_id' => $wpdb->siteid,
+                'network_id' => $network_id,
                 'spam'       => 0,
                 'deleted'    => 0,
                 'archived'   => 0,
                 'count'      => true,
         ) );
 
-        update_site_option( 'blog_count', $count );
+        update_network_option( $network_id, 'blog_count', $count );
 }
 
 /**
  * Update the network-wide user count.
  *
  * @since 3.7.0
+ * @since 4.8.0 The $network_id parameter has been added.
  *
  * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param int|null $network_id ID of the network. Default is the current network.
  */
-function wp_update_network_user_counts() {
+function wp_update_network_user_counts( $network_id = null ) {
         global $wpdb;
 
         $count = $wpdb->get_var( "SELECT COUNT(ID) as c FROM $wpdb->users WHERE spam = '0' AND deleted = '0'" );
-        update_site_option( 'user_count', $count );
+        update_network_option( $network_id, 'user_count', $count );
 }
 
 /**

src/wp-includes/option.php

@@ -1641 +1641 @@
  * @see set_transient()
  *
  * @param string $transient  Transient name. Expected to not be SQL-escaped. Must be
- *                           40 characters or fewer in length.
+ *                           167 characters or fewer in length.
  * @param mixed  $value      Transient value. Expected to not be SQL-escaped.
  * @param int    $expiration Optional. Time until expiration in seconds. Default 0 (no expiration).
  * @return bool False if value was not set and true if value was set.

src/wp-includes/post.php

@@ -815 +815 @@
                 $args->label = $post_status;
 
         if ( false === $args->label_count )
-                $args->label_count = array( $args->label, $args->label );
+                $args->label_count = _n_noop( $args->label, $args->label );
 
         $wp_post_statuses[$post_status] = $args;
 
@@ -2800 +2800 @@
  *
  * @param int   $post_id Optional. The Post ID. Does not default to the ID of the
  *                       global $post. Default 0.
- * @param array $args    Optional. Category arguments. See wp_get_object_terms(). Default empty.
- * @return array List of categories. If the `$fields` argument passed via `$args` is 'all' or
- *               'all_with_object_id', an array of WP_Term objects will be returned. If `$fields`
- *               is 'ids', an array of category ids. If `$fields` is 'names', an array of category names.
+ * @param array $args    Optional. Category query parameters. Default empty array.
+ *                       See WP_Term_Query::__construct() for supported arguments.
+ * @return array|WP_Error List of categories. If the `$fields` argument passed via `$args` is 'all' or
+ *                        'all_with_object_id', an array of WP_Term objects will be returned. If `$fields`
+ *                        is 'ids', an array of category ids. If `$fields` is 'names', an array of category names.
+ *                        WP_Error object if 'category' taxonomy doesn't exist.
  */
 function wp_get_post_categories( $post_id = 0, $args = array() ) {
         $post_id = (int) $post_id;
@@ -2826 +2828 @@
  *
  * @param int   $post_id Optional. The Post ID. Does not default to the ID of the
  *                       global $post. Default 0.
- * @param array $args Optional. Overwrite the defaults
- * @return array List of post tags.
+ * @param array $args    Optional. Tag query parameters. Default empty array.
+ *                       See WP_Term_Query::__construct() for supported arguments.
+ * @return array|WP_Error Array of WP_Term objects on success or empty array if no tags were found.
+ *                        WP_Error object if 'post_tag' taxonomy doesn't exist.
  */
 function wp_get_post_tags( $post_id = 0, $args = array() ) {
         return wp_get_post_terms( $post_id, 'post_tag', $args);
@@ -2845 +2849 @@
  * @param int    $post_id  Optional. The Post ID. Does not default to the ID of the
  *                         global $post. Default 0.
  * @param string $taxonomy Optional. The taxonomy for which to retrieve terms. Default 'post_tag'.
- * @param array  $args     Optional. wp_get_object_terms() arguments. Default empty array.
- * @return array|WP_Error  List of post terms or empty array if no terms were found. WP_Error object
- *                         if `$taxonomy` doesn't exist.
+ * @param array  $args     Optional. Term query parameters. Default empty array.
+ *                         See WP_Term_Query::__construct() for supported arguments.
+ * @return array|WP_Error  Array of WP_Term objects on success or empty array if no terms were found.
+ *                         WP_Error object if `$taxonomy` doesn't exist.
  */
 function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array() ) {
         $post_id = (int) $post_id;

src/wp-includes/taxonomy.php

@@ -1841 +1841 @@
 
         $args = wp_parse_args( $args );
 
+        /*
+         * When one or more queried taxonomies is registered with an 'args' array,
+         * those params override the `$args` passed to this function.
+         */
+        $terms = array();
+        if ( count( $taxonomies ) > 1 ) {
+                foreach ( $taxonomies as $index => $taxonomy ) {
+                        $t = get_taxonomy( $taxonomy );
+                        if ( isset( $t->args ) && is_array( $t->args ) && $args != array_merge( $args, $t->args ) ) {
+                                unset( $taxonomies[ $index ] );
+                                $terms = array_merge( $terms, wp_get_object_terms( $object_ids, $taxonomy, array_merge( $args, $t->args ) ) );
+                        }
+                }
+        } else {
+                $t = get_taxonomy( $taxonomies[0] );
+                if ( isset( $t->args ) && is_array( $t->args ) ) {
+                        $args = array_merge( $args, $t->args );
+                }
+        }
+
         $args['taxonomy'] = $taxonomies;
         $args['object_ids'] = $object_ids;
 
-        $terms = get_terms( $args );
+        $terms = array_merge( $terms, get_terms( $args ) );
 
         /**
          * Filters the terms for a given object or objects.

src/wp-includes/user.php

@@ -857 +857 @@
                 $select_count = implode(', ', $select_count);
 
                 // Add the meta_value index to the selection list, then run the query.
-                $row = $wpdb->get_row( "SELECT $select_count, COUNT(*) FROM $wpdb->usermeta WHERE meta_key = '{$blog_prefix}capabilities'", ARRAY_N );
+                $row = $wpdb->get_row( "
+                        SELECT {$select_count}, COUNT(*)
+                        FROM {$wpdb->usermeta}
+                        INNER JOIN {$wpdb->users} ON user_id = ID
+                        WHERE meta_key = '{$blog_prefix}capabilities'
+                ", ARRAY_N );
 
                 // Run the previous loop again to associate results with role names.
                 $col = 0;
@@ -881 +886 @@
                         'none' => 0,
                 );
 
-                $users_of_blog = $wpdb->get_col( "SELECT meta_value FROM $wpdb->usermeta WHERE meta_key = '{$blog_prefix}capabilities'" );
+                $users_of_blog = $wpdb->get_col( "
+                        SELECT meta_value
+                        FROM {$wpdb->usermeta}
+                        INNER JOIN {$wpdb->users} ON user_id = ID
+                        WHERE meta_key = '{$blog_prefix}capabilities'
+                " );
 
                 foreach ( $users_of_blog as $caps_meta ) {
                         $b_roles = maybe_unserialize($caps_meta);

tests/phpunit/includes/bootstrap.php

@@ -3 +3 @@
  * Installs WordPress for running the tests and loads WordPress and the test libraries
  */
 
+/**
+ * Compatibility with PHPUnit 6+
+ */
+if ( class_exists( 'PHPUnit\Runner\Version' ) ) {
+        require_once dirname( __FILE__ ) . '/phpunit6-compat.php';
+}
 
 $config_file_path = dirname( dirname( __FILE__ ) );
 if ( ! file_exists( $config_file_path . '/wp-tests-config.php' ) ) {

new file tests/phpunit/includes/object-cache.php

@@ +1 @@
+<?php
+/**
+ * Adds a value to cache.
+ *
+ * If the specified key already exists, the value is not stored and the function
+ * returns false.
+ *
+ * @link http://www.php.net/manual/en/memcached.add.php
+ *
+ * @param string    $key        The key under which to store the value.
+ * @param mixed     $value      The value to store.
+ * @param string    $group      The group value appended to the $key.
+ * @param int       $expiration The expiration time, defaults to 0.
+ * @return bool                 Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_add( $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->add( $key, $value, $group, $expiration );
+}
+
+/**
+ * Adds a value to cache on a specific server.
+ *
+ * Using a server_key value, the object can be stored on a specified server as opposed
+ * to a random server in the stack. Note that this method will add the key/value to the
+ * _cache object as part of the runtime cache. It will add it to an array for the
+ * specified server_key.
+ *
+ * @link http://www.php.net/manual/en/memcached.addbykey.php
+ *
+ * @param string    $server_key     The key identifying the server to store the value on.
+ * @param string    $key            The key under which to store the value.
+ * @param mixed     $value          The value to store.
+ * @param string    $group          The group value appended to the $key.
+ * @param int       $expiration     The expiration time, defaults to 0.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_add_by_key( $server_key, $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->addByKey( $server_key, $key, $value, $group, $expiration );
+}
+
+/**
+ * Add a single server to the list of Memcached servers.
+ *
+ * @link http://www.php.net/manual/en/memcached.addserver.php
+ *
+ * @param string        $host   The hostname of the memcache server.
+ * @param int           $port   The port on which memcache is running.
+ * @param int           $weight The weight of the server relative to the total weight of all the servers in the pool.
+ * @return bool                 Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_add_server( $host, $port, $weight = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->addServer( $host, $port, $weight );
+}
+
+/**
+ * Adds an array of servers to the pool.
+ *
+ * Each individual server in the array must include a domain and port, with an optional
+ * weight value: $servers = array( array( '127.0.0.1', 11211, 0 ) );
+ *
+ * @link http://www.php.net/manual/en/memcached.addservers.php
+ *
+ * @param array     $servers    Array of server to register.
+ * @return bool                 True on success; false on failure.
+ */
+function wp_cache_add_servers( $servers ) {
+        global $wp_object_cache;
+        return $wp_object_cache->addServers( $servers );
+}
+
+/**
+ * Append data to an existing item.
+ *
+ * This method should throw an error if it is used with compressed data. This
+ * is an expected behavior. Memcached casts the value to be appended to the initial value to the
+ * type of the initial value. Be careful as this leads to unexpected behavior at times. Due to
+ * how memcached treats types, the behavior has been mimicked in the internal cache to produce
+ * similar results and improve consistency. It is recommend that appends only occur with data of
+ * the same type.
+ *
+ * @link http://www.php.net/manual/en/memcached.append.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param mixed     $value  Must be string as appending mixed values is not well-defined
+ * @param string    $group  The group value appended to the $key.
+ * @return bool             Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_append( $key, $value, $group = '' ) {
+        global $wp_object_cache;
+        return $wp_object_cache->append( $key, $value, $group );
+}
+
+/**
+ * Append data to an existing item by server key.
+ *
+ * This method should throw an error if it is used with compressed data. This
+ * is an expected behavior. Memcached casts the value to be appended to the initial value to the
+ * type of the initial value. Be careful as this leads to unexpected behavior at times. Due to
+ * how memcached treats types, the behavior has been mimicked in the internal cache to produce
+ * similar results and improve consistency. It is recommend that appends only occur with data of
+ * the same type.
+ *
+ * @link http://www.php.net/manual/en/memcached.appendbykey.php
+ *
+ * @param string    $server_key     The key identifying the server to store the value on.
+ * @param string    $key            The key under which to store the value.
+ * @param mixed     $value          Must be string as appending mixed values is not well-defined
+ * @param string    $group          The group value appended to the $key.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_append_by_key( $server_key, $key, $value, $group = '' ) {
+        global $wp_object_cache;
+        return $wp_object_cache->appendByKey( $server_key, $key, $value, $group );
+}
+
+/**
+ * Performs a "check and set" to store data.
+ *
+ * The set will be successful only if the no other request has updated the value since it was fetched by
+ * this request.
+ *
+ * @link http://www.php.net/manual/en/memcached.cas.php
+ *
+ * @param float     $cas_token  Unique value associated with the existing item. Generated by memcached.
+ * @param string    $key        The key under which to store the value.
+ * @param mixed     $value      The value to store.
+ * @param string    $group      The group value appended to the $key.
+ * @param int       $expiration The expiration time, defaults to 0.
+ * @return bool                 Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_cas( $cas_token, $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->cas( $cas_token, $key, $value, $group, $expiration );
+}
+
+/**
+ * Performs a "check and set" to store data with a server key.
+ *
+ * The set will be successful only if the no other request has updated the value since it was fetched by
+ * this request.
+ *
+ * @link http://www.php.net/manual/en/memcached.casbykey.php
+ *
+ * @param string    $server_key The key identifying the server to store the value on.
+ * @param float     $cas_token  Unique value associated with the existing item. Generated by memcached.
+ * @param string    $key        The key under which to store the value.
+ * @param mixed     $value      The value to store.
+ * @param string    $group      The group value appended to the $key.
+ * @param int       $expiration The expiration time, defaults to 0.
+ * @return bool                 Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_cas_by_key( $cas_token, $server_key, $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->casByKey( $cas_token, $server_key, $key, $value, $group, $expiration );
+}
+
+/**
+ * Closes the cache.
+ *
+ * This function has ceased to do anything since WordPress 2.5. The
+ * functionality was removed along with the rest of the persistent cache. This
+ * does not mean that plugins can't implement this function when they need to
+ * make sure that the cache is cleaned up after WordPress no longer needs it.
+ *
+ * @since 2.0.0
+ *
+ * @return  bool    Always returns True
+ */
+function wp_cache_close() {
+        return true;
+}
+
+/**
+ * Decrement a numeric item's value.
+ *
+ * @link http://www.php.net/manual/en/memcached.decrement.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param int       $offset The amount by which to decrement the item's value.
+ * @param string    $group  The group value appended to the $key.
+ * @return int|bool         Returns item's new value on success or FALSE on failure.
+ */
+function wp_cache_decrement( $key, $offset = 1, $group = '' ) {
+        global $wp_object_cache;
+        return $wp_object_cache->decrement( $key, $offset, $group );
+}
+
+/**
+ * Decrement a numeric item's value.
+ *
+ * Same as wp_cache_decrement. Original WordPress caching backends use wp_cache_decr. I
+ * want both spellings to work.
+ *
+ * @link http://www.php.net/manual/en/memcached.decrement.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param int       $offset The amount by which to decrement the item's value.
+ * @param string    $group  The group value appended to the $key.
+ * @return int|bool         Returns item's new value on success or FALSE on failure.
+ */
+function wp_cache_decr( $key, $offset = 1, $group = '' ) {
+        return wp_cache_decrement( $key, $offset, $group );
+}
+
+/**
+ * Remove the item from the cache.
+ *
+ * Remove an item from memcached with identified by $key after $time seconds. The
+ * $time parameter allows an object to be queued for deletion without immediately
+ * deleting. Between the time that it is queued and the time it's deleted, add,
+ * replace, and get will fail, but set will succeed.
+ *
+ * @link http://www.php.net/manual/en/memcached.delete.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param string    $group  The group value appended to the $key.
+ * @param int       $time   The amount of time the server will wait to delete the item in seconds.
+ * @return bool             Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_delete( $key, $group = '', $time = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->delete( $key, $group, $time );
+}
+
+/**
+ * Remove the item from the cache by server key.
+ *
+ * Remove an item from memcached with identified by $key after $time seconds. The
+ * $time parameter allows an object to be queued for deletion without immediately
+ * deleting. Between the time that it is queued and the time it's deleted, add,
+ * replace, and get will fail, but set will succeed.
+ *
+ * @link http://www.php.net/manual/en/memcached.deletebykey.php
+ *
+ * @param string        $server_key The key identifying the server to store the value on.
+ * @param string        $key        The key under which to store the value.
+ * @param string        $group      The group value appended to the $key.
+ * @param int           $time       The amount of time the server will wait to delete the item in seconds.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_delete_by_key( $server_key, $key, $group = '', $time = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->deleteByKey( $server_key, $key, $group, $time );
+}
+
+/**
+ * Fetch the next result.
+ *
+ * @link http://www.php.net/manual/en/memcached.fetch.php
+ *
+ * @return  array|bool   Returns the next result or FALSE otherwise.
+ */
+function wp_cache_fetch() {
+        global $wp_object_cache;
+        return $wp_object_cache->fetch();
+}
+
+/**
+ * Fetch all remaining results from the last request.
+ *
+ * @link http://www.php.net/manual/en/memcached.fetchall.php
+ *
+ * @return  array|bool  Returns the results or FALSE on failure.
+ */
+function wp_cache_fetch_all() {
+        global $wp_object_cache;
+        return $wp_object_cache->fetchAll();
+}
+
+/**
+ * Invalidate all items in the cache.
+ *
+ * @link http://www.php.net/manual/en/memcached.flush.php
+ *
+ * @param int       $delay  Number of seconds to wait before invalidating the items.
+ * @return bool             Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_flush( $delay = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->flush( $delay );
+}
+
+/**
+ * Retrieve object from cache.
+ *
+ * Gets an object from cache based on $key and $group. In order to fully support the $cache_cb and $cas_token
+ * parameters, the runtime cache is ignored by this function if either of those values are set. If either of
+ * those values are set, the request is made directly to the memcached server for proper handling of the
+ * callback and/or token.
+ *
+ * Note that the $deprecated and $found args are only here for compatibility with the native wp_cache_get function.
+ *
+ * @link http://www.php.net/manual/en/memcached.get.php
+ *
+ * @param string        $key        The key under which to store the value.
+ * @param string        $group      The group value appended to the $key.
+ * @param bool          $force      Whether or not to force a cache invalidation.
+ * @param null|bool     $found      Variable passed by reference to determine if the value was found or not.
+ * @param null|string   $cache_cb   Read-through caching callback.
+ * @param null|float    $cas_token  The variable to store the CAS token in.
+ * @return bool|mixed               Cached object value.
+ */
+function wp_cache_get( $key, $group = '', $force = false, &$found = null, $cache_cb = null, &$cas_token = null ) {
+        global $wp_object_cache;
+
+        if ( func_num_args() > 4 )
+                return $wp_object_cache->get( $key, $group, $force, $found, '', false, $cache_cb, $cas_token );
+        else
+                return $wp_object_cache->get( $key, $group, $force, $found );
+}
+
+/**
+ * Retrieve object from cache from specified server.
+ *
+ * Gets an object from cache based on $key, $group and $server_key. In order to fully support the $cache_cb and $cas_token
+ * parameters, the runtime cache is ignored by this function if either of those values are set. If either of
+ * those values are set, the request is made directly to the memcached server for proper handling of the
+ * callback and/or token.
+ *
+ * @link http://www.php.net/manual/en/memcached.getbykey.php
+ *
+ * @param string        $server_key The key identifying the server to store the value on.
+ * @param string        $key        The key under which to store the value.
+ * @param string        $group      The group value appended to the $key.
+ * @param bool          $force      Whether or not to force a cache invalidation.
+ * @param null|bool     $found      Variable passed by reference to determine if the value was found or not.
+ * @param null|string   $cache_cb   Read-through caching callback.
+ * @param null|float    $cas_token  The variable to store the CAS token in.
+ * @return bool|mixed               Cached object value.
+ */
+function wp_cache_get_by_key( $server_key, $key, $group = '', $force = false, &$found = null, $cache_cb = NULL, &$cas_token = NULL ) {
+        global $wp_object_cache;
+
+        if ( func_num_args() > 5 )
+                return $wp_object_cache->getByKey( $server_key, $key, $group, $force, $found, $cache_cb, $cas_token );
+        else
+                return $wp_object_cache->getByKey( $server_key, $key, $group, $force, $found );
+}
+
+/**
+ * Request multiple keys without blocking.
+ *
+ * @link http://www.php.net/manual/en/memcached.getdelayed.php
+ *
+ * @param string|array  $keys       Array or string of key(s) to request.
+ * @param string|array  $groups     Array or string of group(s) for the key(s). See buildKeys for more on how these are handled.
+ * @param bool          $with_cas   Whether to request CAS token values also.
+ * @param null          $value_cb   The result callback or NULL.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_get_delayed( $keys, $groups = '', $with_cas = false, $value_cb = NULL ) {
+        global $wp_object_cache;
+        return $wp_object_cache->getDelayed( $keys, $groups, $with_cas, $value_cb );
+}
+
+/**
+ * Request multiple keys without blocking from a specified server.
+ *
+ * @link http://www.php.net/manual/en/memcached.getdelayed.php
+ *
+ * @param string        $server_key The key identifying the server to store the value on.
+ * @param string|array  $keys       Array or string of key(s) to request.
+ * @param string|array  $groups     Array or string of group(s) for the key(s). See buildKeys for more on how these are handled.
+ * @param bool          $with_cas   Whether to request CAS token values also.
+ * @param null          $value_cb   The result callback or NULL.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_get_delayed_by_key( $server_key, $keys, $groups = '', $with_cas = false, $value_cb = NULL ) {
+        global $wp_object_cache;
+        return $wp_object_cache->getDelayedByKey( $server_key, $keys, $groups, $with_cas, $value_cb );
+}
+
+/**
+ * Gets multiple values from memcached in one request.
+ *
+ * See the buildKeys method definition to understand the $keys/$groups parameters.
+ *
+ * @link http://www.php.net/manual/en/memcached.getmulti.php
+ *
+ * @param array         $keys       Array of keys to retrieve.
+ * @param string|array  $groups     If string, used for all keys. If arrays, corresponds with the $keys array.
+ * @param null|array    $cas_tokens The variable to store the CAS tokens for the found items.
+ * @param int           $flags      The flags for the get operation.
+ * @return bool|array               Returns the array of found items or FALSE on failure.
+ */
+function wp_cache_get_multi( $keys, $groups = '', &$cas_tokens = NULL, $flags = NULL ) {
+        global $wp_object_cache;
+
+        if ( func_num_args() > 2 )
+                return $wp_object_cache->getMulti( $keys, $groups, '', $cas_tokens, $flags );
+        else
+                return $wp_object_cache->getMulti( $keys, $groups );
+}
+
+/**
+ * Gets multiple values from memcached in one request by specified server key.
+ *
+ * See the buildKeys method definition to understand the $keys/$groups parameters.
+ *
+ * @link http://www.php.net/manual/en/memcached.getmultibykey.php
+ *
+ * @param string        $server_key The key identifying the server to store the value on.
+ * @param array         $keys       Array of keys to retrieve.
+ * @param string|array  $groups     If string, used for all keys. If arrays, corresponds with the $keys array.
+ * @param null|array    $cas_tokens The variable to store the CAS tokens for the found items.
+ * @param int           $flags      The flags for the get operation.
+ * @return bool|array               Returns the array of found items or FALSE on failure.
+ */
+function wp_cache_get_multi_by_key( $server_key, $keys, $groups = '', &$cas_tokens = NULL, $flags = NULL ) {
+        global $wp_object_cache;
+
+        if ( func_num_args() > 3 )
+                return $wp_object_cache->getMultiByKey( $server_key, $keys, $groups, $cas_tokens, $flags );
+        else
+                return $wp_object_cache->getMultiByKey( $server_key, $keys, $groups );
+}
+
+/**
+ * Retrieve a Memcached option value.
+ *
+ * @link http://www.php.net/manual/en/memcached.getoption.php
+ *
+ * @param int   $option One of the Memcached::OPT_* constants.
+ * @return mixed        Returns the value of the requested option, or FALSE on error.
+ */
+function wp_cache_get_option( $option ) {
+        global $wp_object_cache;
+        return $wp_object_cache->getOption( $option );
+}
+
+/**
+ * Return the result code of the last option.
+ *
+ * @link http://www.php.net/manual/en/memcached.getresultcode.php
+ *
+ * @return int  Result code of the last Memcached operation.
+ */
+function wp_cache_get_result_code() {
+        global $wp_object_cache;
+        return $wp_object_cache->getResultCode();
+}
+
+/**
+ * Return the message describing the result of the last operation.
+ *
+ * @link http://www.php.net/manual/en/memcached.getresultmessage.php
+ *
+ * @return string   Message describing the result of the last Memcached operation.
+ */
+function wp_cache_get_result_message() {
+        global $wp_object_cache;
+        return $wp_object_cache->getResultMessage();
+}
+
+/**
+ * Get server information by key.
+ *
+ * @link http://www.php.net/manual/en/memcached.getserverbykey.php
+ *
+ * @param string    $server_key The key identifying the server to store the value on.
+ * @return array                Array with host, post, and weight on success, FALSE on failure.
+ */
+function wp_cache_get_server_by_key( $server_key ) {
+        global $wp_object_cache;
+        return $wp_object_cache->getServerByKey( $server_key );
+}
+
+/**
+ * Get the list of servers in the pool.
+ *
+ * @link http://www.php.net/manual/en/memcached.getserverlist.php
+ *
+ * @return array    The list of all servers in the server pool.
+ */
+function wp_cache_get_server_list() {
+        global $wp_object_cache;
+        return $wp_object_cache->getServerList();
+}
+
+/**
+ * Get server pool statistics.
+ *
+ * @link http://www.php.net/manual/en/memcached.getstats.php
+ *
+ * @return array    Array of server statistics, one entry per server.
+ */
+function wp_cache_get_stats() {
+        global $wp_object_cache;
+        return $wp_object_cache->getStats();
+}
+
+/**
+ * Get server pool memcached version information.
+ *
+ * @link http://www.php.net/manual/en/memcached.getversion.php
+ *
+ * @return array    Array of server versions, one entry per server.
+ */
+function wp_cache_get_version() {
+        global $wp_object_cache;
+        return $wp_object_cache->getVersion();
+}
+
+/**
+ * Increment a numeric item's value.
+ *
+ * @link http://www.php.net/manual/en/memcached.increment.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param int       $offset The amount by which to increment the item's value.
+ * @param string    $group  The group value appended to the $key.
+ * @return int|bool         Returns item's new value on success or FALSE on failure.
+ */
+function wp_cache_increment( $key, $offset = 1, $group = '' ) {
+        global $wp_object_cache;
+        return $wp_object_cache->increment( $key, $offset, $group );
+}
+
+/**
+ * Increment a numeric item's value.
+ *
+ * This is the same as wp_cache_increment, but kept for back compatibility. The original
+ * WordPress caching backends use wp_cache_incr. I want both to work.
+ *
+ * @link http://www.php.net/manual/en/memcached.increment.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param int       $offset The amount by which to increment the item's value.
+ * @param string    $group  The group value appended to the $key.
+ * @return int|bool         Returns item's new value on success or FALSE on failure.
+ */
+function wp_cache_incr( $key, $offset = 1, $group = '' ) {
+        return wp_cache_increment( $key, $offset, $group );
+}
+
+/**
+ * Prepend data to an existing item.
+ *
+ * This method should throw an error if it is used with compressed data. This is an expected behavior.
+ * Memcached casts the value to be prepended to the initial value to the type of the initial value. Be
+ * careful as this leads to unexpected behavior at times. For instance, prepending (float) 45.23 to
+ * (int) 23 will result in 45, because the value is first combined (45.2323) then cast to "integer"
+ * (the original value), which will be (int) 45. Due to how memcached treats types, the behavior has been
+ * mimicked in the internal cache to produce similar results and improve consistency. It is recommend
+ * that prepends only occur with data of the same type.
+ *
+ * @link http://www.php.net/manual/en/memcached.prepend.php
+ *
+ * @param string    $key    The key under which to store the value.
+ * @param string    $value  Must be string as prepending mixed values is not well-defined.
+ * @param string    $group  The group value prepended to the $key.
+ * @return bool             Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_prepend( $key, $value, $group = '' ) {
+        global $wp_object_cache;
+        return $wp_object_cache->prepend( $key, $value, $group );
+}
+
+/**
+ * Append data to an existing item by server key.
+ *
+ * This method should throw an error if it is used with compressed data. This is an expected behavior.
+ * Memcached casts the value to be prepended to the initial value to the type of the initial value. Be
+ * careful as this leads to unexpected behavior at times. For instance, prepending (float) 45.23 to
+ * (int) 23 will result in 45, because the value is first combined (45.2323) then cast to "integer"
+ * (the original value), which will be (int) 45. Due to how memcached treats types, the behavior has been
+ * mimicked in the internal cache to produce similar results and improve consistency. It is recommend
+ * that prepends only occur with data of the same type.
+ *
+ * @link http://www.php.net/manual/en/memcached.prependbykey.php
+ *
+ * @param string    $server_key     The key identifying the server to store the value on.
+ * @param string    $key            The key under which to store the value.
+ * @param string    $value          Must be string as prepending mixed values is not well-defined.
+ * @param string    $group          The group value prepended to the $key.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_prepend_by_key( $server_key, $key, $value, $group = '' ) {
+        global $wp_object_cache;
+        return $wp_object_cache->prependByKey( $server_key, $key, $value, $group );
+}
+
+/**
+ * Replaces a value in cache.
+ *
+ * This method is similar to "add"; however, is does not successfully set a value if
+ * the object's key is not already set in cache.
+ *
+ * @link http://www.php.net/manual/en/memcached.replace.php
+ *
+ * @param string    $key        The key under which to store the value.
+ * @param mixed     $value      The value to store.
+ * @param string    $group      The group value appended to the $key.
+ * @param int       $expiration The expiration time, defaults to 0.
+ * @return bool                 Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_replace( $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->replace( $key, $value, $group, $expiration );
+}
+
+/**
+ * Replaces a value in cache on a specific server.
+ *
+ * This method is similar to "addByKey"; however, is does not successfully set a value if
+ * the object's key is not already set in cache.
+ *
+ * @link http://www.php.net/manual/en/memcached.addbykey.php
+ *
+ * @param string    $server_key     The key identifying the server to store the value on.
+ * @param string    $key            The key under which to store the value.
+ * @param mixed     $value          The value to store.
+ * @param string    $group          The group value appended to the $key.
+ * @param int       $expiration     The expiration time, defaults to 0.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_replace_by_key( $server_key, $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->replaceByKey( $server_key, $key, $value, $group, $expiration );
+}
+
+/**
+ * Sets a value in cache.
+ *
+ * The value is set whether or not this key already exists in memcached.
+ *
+ * @link http://www.php.net/manual/en/memcached.set.php
+ *
+ * @param string    $key        The key under which to store the value.
+ * @param mixed     $value      The value to store.
+ * @param string    $group      The group value appended to the $key.
+ * @param int       $expiration The expiration time, defaults to 0.
+ * @return bool                 Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_set( $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->set( $key, $value, $group, $expiration );
+}
+
+/**
+ * Sets a value in cache.
+ *
+ * The value is set whether or not this key already exists in memcached.
+ *
+ * @link http://www.php.net/manual/en/memcached.set.php
+ *
+ * @param string    $server_key     The key identifying the server to store the value on.
+ * @param string    $key            The key under which to store the value.
+ * @param mixed     $value          The value to store.
+ * @param string    $group          The group value appended to the $key.
+ * @param int       $expiration     The expiration time, defaults to 0.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_set_by_key( $server_key, $key, $value, $group = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->setByKey( $server_key, $key, $value, $group, $expiration );
+}
+
+/**
+ * Set multiple values to cache at once.
+ *
+ * By sending an array of $items to this function, all values are saved at once to
+ * memcached, reducing the need for multiple requests to memcached. The $items array
+ * keys and values are what are stored to memcached. The keys in the $items array
+ * are merged with the $groups array/string value via buildKeys to determine the
+ * final key for the object.
+ *
+ * @param array         $items      An array of key/value pairs to store on the server.
+ * @param string|array  $groups     Group(s) to merge with key(s) in $items.
+ * @param int           $expiration The expiration time, defaults to 0.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_set_multi( $items, $groups = '', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->setMulti( $items, $groups, $expiration );
+}
+
+/**
+ * Set multiple values to cache at once on specified server.
+ *
+ * By sending an array of $items to this function, all values are saved at once to
+ * memcached, reducing the need for multiple requests to memcached. The $items array
+ * keys and values are what are stored to memcached. The keys in the $items array
+ * are merged with the $groups array/string value via buildKeys to determine the
+ * final key for the object.
+ *
+ * @param string        $server_key The key identifying the server to store the value on.
+ * @param array         $items      An array of key/value pairs to store on the server.
+ * @param string|array  $groups     Group(s) to merge with key(s) in $items.
+ * @param int           $expiration The expiration time, defaults to 0.
+ * @return bool                     Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_set_multi_by_key( $server_key, $items, $groups = 'default', $expiration = 0 ) {
+        global $wp_object_cache;
+        return $wp_object_cache->setMultiByKey( $server_key, $items, $groups, $expiration );
+}
+
+/**
+ * Set a Memcached option.
+ *
+ * @link http://www.php.net/manual/en/memcached.setoption.php
+ *
+ * @param int       $option Option name.
+ * @param mixed     $value  Option value.
+ * @return bool             Returns TRUE on success or FALSE on failure.
+ */
+function wp_cache_set_option( $option, $value ) {
+        global $wp_object_cache;
+        return $wp_object_cache->setOption( $option, $value );
+}
+
+/**
+ * Switch blog prefix, which changes the cache that is accessed.
+ *
+ * @param  int     $blog_id    Blog to switch to.
+ * @return void
+ */
+function wp_cache_switch_to_blog( $blog_id ) {
+        global $wp_object_cache;
+        return $wp_object_cache->switch_to_blog( $blog_id );
+}
+
+
+/**
+ * Sets up Object Cache Global and assigns it.
+ *
+ * @global  WP_Object_Cache     $wp_object_cache    WordPress Object Cache
+ * @return  void
+ */
+function wp_cache_init() {
+        global $wp_object_cache;
+        $wp_object_cache = new WP_Object_Cache();
+}
+
+/**
+ * Adds a group or set of groups to the list of non-persistent groups.
+ *
+ * @param   string|array    $groups     A group or an array of groups to add.
+ * @return  void
+ */
+function wp_cache_add_global_groups( $groups ) {
+        global $wp_object_cache;
+        $wp_object_cache->add_global_groups( $groups );
+}
+
+/**
+ * Adds a group or set of groups to the list of non-Memcached groups.
+ *
+ * @param   string|array    $groups     A group or an array of groups to add.
+ * @return  void
+ */
+function wp_cache_add_non_persistent_groups( $groups ) {
+        global $wp_object_cache;
+        $wp_object_cache->add_non_persistent_groups( $groups );
+}
+
+class WP_Object_Cache {
+
+        /**
+         * Holds the Memcached object.
+         *
+         * @var Memcached
+         */
+        public $m;
+
+        /**
+         * Hold the Memcached server details.
+         *
+         * @var array
+         */
+        public $servers;
+
+        /**
+         * Holds the non-Memcached objects.
+         *
+         * @var array
+         */
+        public $cache = array();
+
+        /**
+         * List of global groups.
+         *
+         * @var array
+         */
+        public $global_groups = array( 'users', 'userlogins', 'usermeta', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss' );
+
+        /**
+         * List of groups not saved to Memcached.
+         *
+         * @var array
+         */
+        public $no_mc_groups = array( 'comment', 'counts' );
+
+        /**
+         * Prefix used for global groups.
+         *
+         * @var string
+         */
+        public $global_prefix = '';
+
+        /**
+         * Prefix used for non-global groups.
+         *
+         * @var string
+         */
+        public $blog_prefix = '';
+
+        /**
+         * Instantiate the Memcached class.
+         *
+         * Instantiates the Memcached class and returns adds the servers specified
+         * in the $memcached_servers global array.
+         *
+         * @link    http://www.php.net/manual/en/memcached.construct.php
+         *
+         * @param   null    $persistent_id      To create an instance that persists between requests, use persistent_id to specify a unique ID for the instance.
+         */
+        public function __construct( $persistent_id = NULL ) {
+                global $memcached_servers, $blog_id, $table_prefix;
+
+                if ( is_null( $persistent_id ) || ! is_string( $persistent_id ) )
+                        $this->m = new Memcached();
+                else
+                        $this->m = new Memcached( $persistent_id );
+
+                if ( isset( $memcached_servers ) )
+                        $this->servers = $memcached_servers;
+                else
+                        $this->servers = array( array( '127.0.0.1', 11211 ) );
+
+                $this->addServers( $this->servers );
+
+                /**
+                 * This approach is borrowed from Sivel and Boren. Use the salt for easy cache invalidation and for
+                 * multi single WP installs on the same server.
+                 */
+                if ( ! defined( 'WP_CACHE_KEY_SALT' ) )
+                        define( 'WP_CACHE_KEY_SALT', '' );
+
+                // Assign global and blog prefixes for use with keys
+                if ( function_exists( 'is_multisite' ) ) {
+                        $this->global_prefix = ( is_multisite() || defined( 'CUSTOM_USER_TABLE' ) && defined( 'CUSTOM_USER_META_TABLE' ) ) ? '' : $table_prefix;
+                        $this->blog_prefix = ( is_multisite() ? $blog_id : $table_prefix ) . ':';
+                }
+
+                // Setup cacheable values for handling expiration times
+                $this->thirty_days = 60 * 60 * 24 * 30;
+                $this->now         = time();
+        }
+
+        /**
+         * Adds a value to cache.
+         *
+         * If the specified key already exists, the value is not stored and the function
+         * returns false.
+         *
+         * @link    http://www.php.net/manual/en/memcached.add.php
+         *
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          The value to store.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   int         $expiration     The expiration time, defaults to 0.
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   bool        $byKey          True to store in internal cache by key; false to not store by key
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function add( $key, $value, $group = 'default', $expiration = 0, $server_key = '', $byKey = false ) {
+                /*
+                 * Ensuring that wp_suspend_cache_addition is defined before calling, because sometimes an advanced-cache.php
+                 * file will load object-cache.php before wp-includes/functions.php is loaded. In those cases, if wp_cache_add
+                 * is called in advanced-cache.php before any more of WordPress is loaded, we get a fatal error because
+                 * wp_suspend_cache_addition will not be defined until wp-includes/functions.php is loaded.
+                 */
+                if ( function_exists( 'wp_suspend_cache_addition' ) && wp_suspend_cache_addition() ) {
+                        return false;
+                }
+
+                $derived_key = $this->buildKey( $key, $group );
+                $expiration  = $this->sanitize_expiration( $expiration );
+
+                // If group is a non-Memcached group, save to runtime cache, not Memcached
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+
+                        // Add does not set the value if the key exists; mimic that here
+                        if ( isset( $this->cache[$derived_key] ) )
+                                return false;
+
+                        $this->add_to_internal_cache( $derived_key, $value );
+
+                        return true;
+                }
+
+                // Save to Memcached
+                if ( $byKey )
+                        $result = $this->m->addByKey( $server_key, $derived_key, $value, $expiration );
+                else
+                        $result = $this->m->add( $derived_key, $value, $expiration );
+
+                // Store in runtime cache if add was successful
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        $this->add_to_internal_cache( $derived_key, $value );
+
+                return $result;
+        }
+
+        /**
+         * Adds a value to cache on a specific server.
+         *
+         * Using a server_key value, the object can be stored on a specified server as opposed
+         * to a random server in the stack. Note that this method will add the key/value to the
+         * _cache object as part of the runtime cache. It will add it to an array for the
+         * specified server_key.
+         *
+         * @link    http://www.php.net/manual/en/memcached.addbykey.php
+         *
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          The value to store.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   int         $expiration     The expiration time, defaults to 0.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function addByKey( $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+                return $this->add( $key, $value, $group, $expiration, $server_key, true );
+        }
+
+        /**
+         * Add a single server to the list of Memcached servers.
+         *
+         * @link http://www.php.net/manual/en/memcached.addserver.php
+         *
+         * @param   string      $host           The hostname of the memcache server.
+         * @param   int         $port           The port on which memcache is running.
+         * @param   int         $weight         The weight of the server relative to the total weight of all the servers in the pool.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function addServer( $host, $port, $weight = 0 ) {
+                $host = is_string( $host ) ? $host : '127.0.0.1';
+                $port = is_numeric( $port ) && $port > 0 ? $port : 11211;
+                $weight = is_numeric( $weight ) && $weight > 0 ? $weight : 1;
+
+                return $this->m->addServer( $host, $port, $weight );
+        }
+
+        /**
+         * Adds an array of servers to the pool.
+         *
+         * Each individual server in the array must include a domain and port, with an optional
+         * weight value: $servers = array( array( '127.0.0.1', 11211, 0 ) );
+         *
+         * @link    http://www.php.net/manual/en/memcached.addservers.php
+         *
+         * @param   array       $servers        Array of server to register.
+         * @return  bool                        True on success; false on failure.
+         */
+        public function addServers( $servers ) {
+                if ( ! is_object( $this->m ) )
+                        return false;
+
+                return $this->m->addServers( $servers );
+        }
+
+        /**
+         * Append data to an existing item.
+         *
+         * This method should throw an error if it is used with compressed data. This
+         * is an expected behavior. Memcached casts the value to be appended to the initial value to the
+         * type of the initial value. Be careful as this leads to unexpected behavior at times. Due to
+         * how memcached treats types, the behavior has been mimicked in the internal cache to produce
+         * similar results and improve consistency. It is recommend that appends only occur with data of
+         * the same type.
+         *
+         * @link    http://www.php.net/manual/en/memcached.append.php
+         *
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          Must be string as appending mixed values is not well-defined.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   bool        $byKey          True to store in internal cache by key; false to not store by key
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function append( $key, $value, $group = 'default', $server_key = '', $byKey = false ) {
+                if ( ! is_string( $value ) && ! is_int( $value ) && ! is_float( $value ) )
+                        return false;
+
+                $derived_key = $this->buildKey( $key, $group );
+
+                // If group is a non-Memcached group, append to runtime cache value, not Memcached
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+                        if ( ! isset( $this->cache[$derived_key] ) )
+                                return false;
+
+                        $combined = $this->combine_values( $this->cache[$derived_key], $value, 'app' );
+                        $this->add_to_internal_cache( $derived_key, $combined );
+                        return true;
+                }
+
+                // Append to Memcached value
+                if ( $byKey )
+                        $result = $this->m->appendByKey( $server_key, $derived_key, $value );
+                else
+                        $result = $this->m->append( $derived_key, $value );
+
+                // Store in runtime cache if add was successful
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() ) {
+                        $combined = $this->combine_values( $this->cache[$derived_key], $value, 'app' );
+                        $this->add_to_internal_cache( $derived_key, $combined );
+                }
+
+                return $result;
+        }
+
+        /**
+         * Append data to an existing item by server key.
+         *
+         * This method should throw an error if it is used with compressed data. This
+         * is an expected behavior. Memcached casts the value to be appended to the initial value to the
+         * type of the initial value. Be careful as this leads to unexpected behavior at times. Due to
+         * how memcached treats types, the behavior has been mimicked in the internal cache to produce
+         * similar results and improve consistency. It is recommend that appends only occur with data of
+         * the same type.
+         *
+         * @link    http://www.php.net/manual/en/memcached.appendbykey.php
+         *
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          Must be string as appending mixed values is not well-defined
+         * @param   string      $group          The group value appended to the $key.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function appendByKey( $server_key, $key, $value, $group = 'default' ) {
+                return $this->append( $key, $value, $group, $server_key, true );
+        }
+
+        /**
+         * Performs a "check and set" to store data.
+         *
+         * The set will be successful only if the no other request has updated the value since it was fetched since
+         * this request.
+         *
+         * @link    http://www.php.net/manual/en/memcached.cas.php
+         *
+         * @param   float       $cas_token      Unique value associated with the existing item. Generated by memcached.
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          The value to store.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   int         $expiration     The expiration time, defaults to 0.
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   bool        $byKey          True to store in internal cache by key; false to not store by key
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function cas( $cas_token, $key, $value, $group = 'default', $expiration = 0, $server_key = '', $byKey = false ) {
+                $derived_key = $this->buildKey( $key, $group );
+                $expiration  = $this->sanitize_expiration( $expiration );
+
+                /**
+                 * If group is a non-Memcached group, save to runtime cache, not Memcached. Note
+                 * that since check and set cannot be emulated in the run time cache, this value
+                 * operation is treated as a normal "add" for no_mc_groups.
+                 */
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+                        $this->add_to_internal_cache( $derived_key, $value );
+                        return true;
+                }
+
+                // Save to Memcached
+                if ( $byKey )
+                        $result = $this->m->casByKey( $cas_token, $server_key, $derived_key, $value, $expiration );
+                else
+                        $result = $this->m->cas( $cas_token, $derived_key, $value, $expiration );
+
+                // Store in runtime cache if cas was successful
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        $this->add_to_internal_cache( $derived_key, $value );
+
+                return $result;
+        }
+
+        /**
+         * Performs a "check and set" to store data with a server key.
+         *
+         * The set will be successful only if the no other request has updated the value since it was fetched by
+         * this request.
+         *
+         * @link    http://www.php.net/manual/en/memcached.casbykey.php
+         *
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   float       $cas_token      Unique value associated with the existing item. Generated by memcached.
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          The value to store.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   int         $expiration     The expiration time, defaults to 0.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function casByKey( $cas_token, $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+                return $this->cas( $cas_token, $key, $value, $group, $expiration, $server_key, true );
+        }
+
+        /**
+         * Decrement a numeric item's value.
+         *
+         * @link http://www.php.net/manual/en/memcached.decrement.php
+         *
+         * @param string    $key    The key under which to store the value.
+         * @param int       $offset The amount by which to decrement the item's value.
+         * @param string    $group  The group value appended to the $key.
+         * @return int|bool         Returns item's new value on success or FALSE on failure.
+         */
+        public function decrement( $key, $offset = 1, $group = 'default' ) {
+                $derived_key = $this->buildKey( $key, $group );
+
+                // Decrement values in no_mc_groups
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+
+                        // Only decrement if the key already exists and value is 0 or greater (mimics memcached behavior)
+                        if ( isset( $this->cache[$derived_key] ) && $this->cache[$derived_key] >= 0 ) {
+
+                                // If numeric, subtract; otherwise, consider it 0 and do nothing
+                                if ( is_numeric( $this->cache[$derived_key] ) )
+                                        $this->cache[$derived_key] -= (int) $offset;
+                                else
+                                        $this->cache[$derived_key] = 0;
+
+                                // Returned value cannot be less than 0
+                                if ( $this->cache[$derived_key] < 0 )
+                                        $this->cache[$derived_key] = 0;
+
+                                return $this->cache[$derived_key];
+                        } else {
+                                return false;
+                        }
+                }
+
+                $result = $this->m->decrement( $derived_key, $offset );
+
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        $this->add_to_internal_cache( $derived_key, $result );
+
+                return $result;
+        }
+
+        /**
+         * Decrement a numeric item's value.
+         *
+         * Alias for $this->decrement. Other caching backends use this abbreviated form of the function. It *may* cause
+         * breakage somewhere, so it is nice to have. This function will also allow the core unit tests to pass.
+         *
+         * @param string    $key    The key under which to store the value.
+         * @param int       $offset The amount by which to decrement the item's value.
+         * @param string    $group  The group value appended to the $key.
+         * @return int|bool         Returns item's new value on success or FALSE on failure.
+         */
+        public function decr( $key, $offset = 1, $group = 'default' ) {
+                return $this->decrement( $key, $offset, $group );
+        }
+
+        /**
+         * Remove the item from the cache.
+         *
+         * Remove an item from memcached with identified by $key after $time seconds. The
+         * $time parameter allows an object to be queued for deletion without immediately
+         * deleting. Between the time that it is queued and the time it's deleted, add,
+         * replace, and get will fail, but set will succeed.
+         *
+         * @link http://www.php.net/manual/en/memcached.delete.php
+         *
+         * @param   string      $key        The key under which to store the value.
+         * @param   string      $group      The group value appended to the $key.
+         * @param   int         $time       The amount of time the server will wait to delete the item in seconds.
+         * @param   string      $server_key The key identifying the server to store the value on.
+         * @param   bool        $byKey      True to store in internal cache by key; false to not store by key
+         * @return  bool                    Returns TRUE on success or FALSE on failure.
+         */
+        public function delete( $key, $group = 'default', $time = 0, $server_key = '', $byKey = false ) {
+                $derived_key = $this->buildKey( $key, $group );
+
+                // Remove from no_mc_groups array
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+                        if ( isset( $this->cache[$derived_key] ) )
+                                unset( $this->cache[$derived_key] );
+
+                        return true;
+                }
+
+                if ( $byKey )
+                        $result = $this->m->deleteByKey( $server_key, $derived_key, $time );
+                else
+                        $result = $this->m->delete( $derived_key, $time );
+
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        unset( $this->cache[$derived_key] );
+
+                return $result;
+        }
+
+        /**
+         * Remove the item from the cache by server key.
+         *
+         * Remove an item from memcached with identified by $key after $time seconds. The
+         * $time parameter allows an object to be queued for deletion without immediately
+         * deleting. Between the time that it is queued and the time it's deleted, add,
+         * replace, and get will fail, but set will succeed.
+         *
+         * @link http://www.php.net/manual/en/memcached.deletebykey.php
+         *
+         * @param   string      $server_key The key identifying the server to store the value on.
+         * @param   string      $key        The key under which to store the value.
+         * @param   string      $group      The group value appended to the $key.
+         * @param   int         $time       The amount of time the server will wait to delete the item in seconds.
+         * @return  bool                    Returns TRUE on success or FALSE on failure.
+         */
+        public function deleteByKey( $server_key, $key, $group = 'default', $time = 0 ) {
+                return $this->delete( $key, $group, $time, $server_key, true );
+        }
+
+        /**
+         * Fetch the next result.
+         *
+         * @link http://www.php.net/manual/en/memcached.fetch.php
+         *
+         * @return array|bool   Returns the next result or FALSE on failure.
+         */
+        public function fetch() {
+                return $this->m->fetch();
+        }
+
+        /**
+         * Fetch all remaining results from the last request.
+         *
+         * @link http://www.php.net/manual/en/memcached.fetchall.php
+         *
+         * @return  array|bool          Returns the results or FALSE on failure.
+         */
+        public function fetchAll() {
+                return $this->m->fetchAll();
+        }
+
+        /**
+         * Invalidate all items in the cache.
+         *
+         * @link http://www.php.net/manual/en/memcached.flush.php
+         *
+         * @param   int     $delay      Number of seconds to wait before invalidating the items.
+         * @return  bool                Returns TRUE on success or FALSE on failure.
+         */
+        public function flush( $delay = 0 ) {
+                $result = $this->m->flush( $delay );
+
+                // Only reset the runtime cache if memcached was properly flushed
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        $this->cache = array();
+
+                return $result;
+        }
+
+        /**
+         * Retrieve object from cache.
+         *
+         * Gets an object from cache based on $key and $group. In order to fully support the $cache_cb and $cas_token
+         * parameters, the runtime cache is ignored by this function if either of those values are set. If either of
+         * those values are set, the request is made directly to the memcached server for proper handling of the
+         * callback and/or token. Note that the $cas_token variable cannot be directly passed to the function. The
+         * variable need to be first defined with a non null value.
+         *
+         * If using the $cache_cb argument, the new value will always have an expiration of time of 0 (forever). This
+         * is a limitation of the Memcached PECL extension.
+         *
+         * @link http://www.php.net/manual/en/memcached.get.php
+         *
+         * @param   string          $key        The key under which to store the value.
+         * @param   string          $group      The group value appended to the $key.
+         * @param   bool            $force      Whether or not to force a cache invalidation.
+         * @param   null|bool       $found      Variable passed by reference to determine if the value was found or not.
+         * @param   string          $server_key The key identifying the server to store the value on.
+         * @param   bool            $byKey      True to store in internal cache by key; false to not store by key
+         * @param   null|callable   $cache_cb   Read-through caching callback.
+         * @param   null|float      $cas_token  The variable to store the CAS token in.
+         * @return  bool|mixed                  Cached object value.
+         */
+        public function get( $key, $group = 'default', $force = false, &$found = null, $server_key = '', $byKey = false, $cache_cb = NULL, &$cas_token = NULL ) {
+                $derived_key = $this->buildKey( $key, $group );
+
+                // Assume object is not found
+                $found = false;
+
+                // If either $cache_db, or $cas_token is set, must hit Memcached and bypass runtime cache
+                if ( func_num_args() > 6 && ! in_array( $group, $this->no_mc_groups ) ) {
+                        if ( $byKey )
+                                $value = $this->m->getByKey( $server_key, $derived_key, $cache_cb, $cas_token );
+                        else
+                                $value = $this->m->get( $derived_key, $cache_cb, $cas_token );
+                } else {
+                        if ( isset( $this->cache[$derived_key] ) ) {
+                                $found = true;
+                                return is_object( $this->cache[$derived_key] ) ? clone $this->cache[$derived_key] : $this->cache[$derived_key];
+                        } elseif ( in_array( $group, $this->no_mc_groups ) ) {
+                                return false;
+                        } else {
+                                if ( $byKey )
+                                        $value = $this->m->getByKey( $server_key, $derived_key );
+                                else
+                                        $value = $this->m->get( $derived_key );
+                        }
+                }
+
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() ) {
+                        $this->add_to_internal_cache( $derived_key, $value );
+                        $found = true;
+                }
+
+                return is_object( $value ) ? clone $value : $value;
+        }
+
+        /**
+         * Retrieve object from cache from specified server.
+         *
+         * Gets an object from cache based on $key, $group and $server_key. In order to fully support the $cache_cb and $cas_token
+         * parameters, the runtime cache is ignored by this function if either of those values are set. If either of
+         * those values are set, the request is made directly to the memcached server for proper handling of the
+         * callback and/or token. Note that the $cas_token variable cannot be directly passed to the function. The
+         * variable need to be first defined with a non null value.
+         *
+         * If using the $cache_cb argument, the new value will always have an expiration of time of 0 (forever). This
+         * is a limitation of the Memcached PECL extension.
+         *
+         * @link http://www.php.net/manual/en/memcached.getbykey.php
+         *
+         * @param   string          $server_key The key identifying the server to store the value on.
+         * @param   string          $key        The key under which to store the value.
+         * @param   string          $group      The group value appended to the $key.
+         * @param   bool            $force      Whether or not to force a cache invalidation.
+         * @param   null|bool       $found      Variable passed by reference to determine if the value was found or not.
+         * @param   null|string     $cache_cb   Read-through caching callback.
+         * @param   null|float      $cas_token  The variable to store the CAS token in.
+         * @return  bool|mixed                  Cached object value.
+         */
+        public function getByKey( $server_key, $key, $group = 'default', $force = false, &$found = null, $cache_cb = NULL, &$cas_token = NULL ) {
+                /**
+                 * Need to be careful how "get" is called. If you send $cache_cb, and $cas_token, it will hit memcached.
+                 * Only send those args if they were sent to this function.
+                 */
+                if ( func_num_args() > 5 )
+                        return $this->get( $key, $group, $force, $found, $server_key, true, $cache_cb, $cas_token );
+                else
+                        return $this->get( $key, $group, $force, $found, $server_key, true );
+        }
+
+        /**
+         * Request multiple keys without blocking.
+         *
+         * @link http://www.php.net/manual/en/memcached.getdelayed.php
+         *
+         * @param   string|array    $keys       Array or string of key(s) to request.
+         * @param   string|array    $groups     Array or string of group(s) for the key(s). See buildKeys for more on how these are handled.
+         * @param   bool            $with_cas   Whether to request CAS token values also.
+         * @param   null            $value_cb   The result callback or NULL.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function getDelayed( $keys, $groups = 'default', $with_cas = false, $value_cb = NULL ) {
+                $derived_keys = $this->buildKeys( $keys, $groups );
+                return $this->m->getDelayed( $derived_keys, $with_cas, $value_cb );
+        }
+
+        /**
+         * Request multiple keys without blocking from a specified server.
+         *
+         * @link http://www.php.net/manual/en/memcached.getdelayed.php
+         *
+         * @param   string          $server_key The key identifying the server to store the value on.
+         * @param   string|array    $keys       Array or string of key(s) to request.
+         * @param   string|array    $groups     Array or string of group(s) for the key(s). See buildKeys for more on how these are handled.
+         * @param   bool            $with_cas   Whether to request CAS token values also.
+         * @param   null            $value_cb   The result callback or NULL.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function getDelayedByKey( $server_key, $keys, $groups = 'default', $with_cas = false, $value_cb = NULL ) {
+                $derived_keys = $this->buildKeys( $keys, $groups );
+                return $this->m->getDelayedByKey( $server_key, $derived_keys, $with_cas, $value_cb );
+        }
+
+        /**
+         * Gets multiple values from memcached in one request.
+         *
+         * See the buildKeys method definition to understand the $keys/$groups parameters.
+         *
+         * @link http://www.php.net/manual/en/memcached.getmulti.php
+         *
+         * @param   array           $keys       Array of keys to retrieve.
+         * @param   string|array    $groups     If string, used for all keys. If arrays, corresponds with the $keys array.
+         * @param   string          $server_key The key identifying the server to store the value on.
+         * @param   null|array      $cas_tokens The variable to store the CAS tokens for the found items.
+         * @param   int             $flags      The flags for the get operation.
+         * @return  bool|array                  Returns the array of found items or FALSE on failure.
+         */
+        public function getMulti( $keys, $groups = 'default', $server_key = '', &$cas_tokens = NULL, $flags = NULL ) {
+                $derived_keys = $this->buildKeys( $keys, $groups );
+
+                /**
+                 * If either $cas_tokens, or $flags is set, must hit Memcached and bypass runtime cache. Note that
+                 * this will purposely ignore no_mc_groups values as they cannot handle CAS tokens or the special
+                 * flags; however, if the groups of groups contains a no_mc_group, this is bypassed.
+                 */
+                if ( func_num_args() > 3 && ! $this->contains_no_mc_group( $groups ) ) {
+                        if ( ! empty( $server_key ) )
+                                $values = $this->m->getMultiByKey( $server_key, $derived_keys, $cas_tokens, $flags );
+                        else
+                                $values = $this->m->getMulti( $derived_keys, $cas_tokens, $flags );
+                } else {
+                        $values = array();
+                        $need_to_get = array();
+
+                        // Pull out values from runtime cache, or mark for retrieval
+                        foreach ( $derived_keys as $key ) {
+                                if ( isset( $this->cache[$key] ) )
+                                        $values[$key] = $this->cache[$key];
+                                else
+                                        $need_to_get[$key] = $key;
+                        }
+
+                        // Get those keys not found in the runtime cache
+                        if ( ! empty( $need_to_get ) ) {
+                                if ( ! empty( $server_key ) )
+                                        $result = $this->m->getMultiByKey( $server_key, array_keys( $need_to_get ) );
+                                else
+                                        $result = $this->m->getMulti( array_keys( $need_to_get ) );
+                        }
+
+                        // Merge with values found in runtime cache
+                        if ( isset( $result ) && Memcached::RES_SUCCESS === $this->getResultCode() )
+                                $values = array_merge( $values, $result );
+
+                        // If order should be preserved, reorder now
+                        if ( ! empty( $need_to_get ) && $flags === Memcached::GET_PRESERVE_ORDER ) {
+                                $ordered_values = array();
+
+                                foreach ( $derived_keys as $key ) {
+                                        if ( isset( $values[$key] ) )
+                                                $ordered_values[$key] = $values[$key];
+                                }
+
+                                $values = $ordered_values;
+                                unset( $ordered_values );
+                        }
+                }
+
+                // Add the values to the runtime cache
+                $this->cache = array_merge( $this->cache, $values );
+
+                return $values;
+        }
+
+        /**
+         * Gets multiple values from memcached in one request by specified server key.
+         *
+         * See the buildKeys method definition to understand the $keys/$groups parameters.
+         *
+         * @link http://www.php.net/manual/en/memcached.getmultibykey.php
+         *
+         * @param   string          $server_key The key identifying the server to store the value on.
+         * @param   array           $keys       Array of keys to retrieve.
+         * @param   string|array    $groups     If string, used for all keys. If arrays, corresponds with the $keys array.
+         * @param   null|array      $cas_tokens The variable to store the CAS tokens for the found items.
+         * @param   int             $flags      The flags for the get operation.
+         * @return  bool|array                  Returns the array of found items or FALSE on failure.
+         */
+        public function getMultiByKey( $server_key, $keys, $groups = 'default', &$cas_tokens = NULL, $flags = NULL ) {
+                /**
+                 * Need to be careful how "getMulti" is called. If you send $cache_cb, and $cas_token, it will hit memcached.
+                 * Only send those args if they were sent to this function.
+                 */
+                if ( func_num_args() > 3 )
+                        return $this->getMulti( $keys, $groups, $server_key, $cas_tokens, $flags );
+                else
+                        return $this->getMulti( $keys, $groups, $server_key );
+        }
+
+        /**
+         * Retrieve a Memcached option value.
+         *
+         * @link http://www.php.net/manual/en/memcached.getoption.php
+         *
+         * @param   int         $option     One of the Memcached::OPT_* constants.
+         * @return  mixed                   Returns the value of the requested option, or FALSE on error.
+         */
+        public function getOption( $option ) {
+                return $this->m->getOption( $option );
+        }
+
+        /**
+         * Return the result code of the last option.
+         *
+         * @link http://www.php.net/manual/en/memcached.getresultcode.php
+         *
+         * @return  int     Result code of the last Memcached operation.
+         */
+        public function getResultCode() {
+            return $this->m->getResultCode();
+        }
+
+        /**
+         * Return the message describing the result of the last operation.
+         *
+         * @link    http://www.php.net/manual/en/memcached.getresultmessage.php
+         *
+         * @return  string      Message describing the result of the last Memcached operation.
+         */
+        public function getResultMessage() {
+            return $this->m->getResultMessage();
+        }
+
+        /**
+         * Get server information by key.
+         *
+         * @link    http://www.php.net/manual/en/memcached.getserverbykey.php
+         *
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @return  array                       Array with host, post, and weight on success, FALSE on failure.
+         */
+        public function getServerByKey( $server_key ) {
+                return $this->m->getServerByKey( $server_key );
+        }
+
+        /**
+         * Get the list of servers in the pool.
+         *
+         * @link    http://www.php.net/manual/en/memcached.getserverlist.php
+         *
+         * @return  array       The list of all servers in the server pool.
+         */
+        public function getServerList() {
+                return $this->m->getServerList();
+        }
+
+        /**
+     * Get server pool statistics.
+         *
+         * @link    http://www.php.net/manual/en/memcached.getstats.php
+         *
+         * @return  array       Array of server statistics, one entry per server.
+         */
+        public function getStats() {
+                return $this->m->getStats();
+        }
+
+        /**
+         * Get server pool memcached version information.
+         *
+         * @link    http://www.php.net/manual/en/memcached.getversion.php
+         *
+         * @return  array       Array of server versions, one entry per server.
+         */
+        public function getVersion() {
+                return $this->m->getVersion();
+        }
+
+        /**
+         * Increment a numeric item's value.
+         *
+         * @link http://www.php.net/manual/en/memcached.increment.php
+         *
+         * @param   string      $key        The key under which to store the value.
+         * @param   int         $offset     The amount by which to increment the item's value.
+         * @param   string      $group      The group value appended to the $key.
+         * @return  int|bool                Returns item's new value on success or FALSE on failure.
+         */
+        public function increment( $key, $offset = 1, $group = 'default' ) {
+                $derived_key = $this->buildKey( $key, $group );
+
+                // Increment values in no_mc_groups
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+
+                        // Only increment if the key already exists and the number is currently 0 or greater (mimics memcached behavior)
+                        if ( isset( $this->cache[$derived_key] ) &&  $this->cache[$derived_key] >= 0 ) {
+
+                                // If numeric, add; otherwise, consider it 0 and do nothing
+                                if ( is_numeric( $this->cache[$derived_key] ) )
+                                        $this->cache[$derived_key] += (int) $offset;
+                                else
+                                        $this->cache[$derived_key] = 0;
+
+                                // Returned value cannot be less than 0
+                                if ( $this->cache[$derived_key] < 0 )
+                                        $this->cache[$derived_key] = 0;
+
+                                return $this->cache[$derived_key];
+                        } else {
+                                return false;
+                        }
+                }
+
+                $result = $this->m->increment( $derived_key, $offset );
+
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        $this->add_to_internal_cache( $derived_key, $result );
+
+                return $result;
+        }
+
+        /**
+         * Synonymous with $this->incr.
+         *
+         * Certain plugins expect an "incr" method on the $wp_object_cache object (e.g., Batcache). Since the original
+         * version of this library matched names to the memcached methods, the "incr" method was missing. Adding this
+         * method restores compatibility with plugins expecting an "incr" method.
+         *
+         * @param   string      $key        The key under which to store the value.
+         * @param   int         $offset     The amount by which to increment the item's value.
+         * @param   string      $group      The group value appended to the $key.
+         * @return  int|bool                Returns item's new value on success or FALSE on failure.
+         */
+        public function incr( $key, $offset = 1, $group = 'default' ) {
+                return $this->increment( $key, $offset, $group );
+        }
+
+        /**
+         * Prepend data to an existing item.
+         *
+         * This method should throw an error if it is used with compressed data. This is an expected behavior.
+         * Memcached casts the value to be prepended to the initial value to the type of the initial value. Be
+         * careful as this leads to unexpected behavior at times. For instance, prepending (float) 45.23 to
+         * (int) 23 will result in 45, because the value is first combined (45.2323) then cast to "integer"
+         * (the original value), which will be (int) 45. Due to how memcached treats types, the behavior has been
+         * mimicked in the internal cache to produce similar results and improve consistency. It is recommend
+         * that prepends only occur with data of the same type.
+         *
+         * @link    http://www.php.net/manual/en/memcached.prepend.php
+         *
+         * @param   string    $key          The key under which to store the value.
+         * @param   string    $value        Must be string as prepending mixed values is not well-defined.
+         * @param   string    $group        The group value prepended to the $key.
+         * @param   string    $server_key   The key identifying the server to store the value on.
+         * @param   bool      $byKey        True to store in internal cache by key; false to not store by key
+         * @return  bool                    Returns TRUE on success or FALSE on failure.
+         */
+        public function prepend( $key, $value, $group = 'default', $server_key = '', $byKey = false ) {
+                if ( ! is_string( $value ) && ! is_int( $value ) && ! is_float( $value ) )
+                        return false;
+
+                $derived_key = $this->buildKey( $key, $group );
+
+                // If group is a non-Memcached group, prepend to runtime cache value, not Memcached
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+                        if ( ! isset( $this->cache[$derived_key] ) )
+                                return false;
+
+                        $combined = $this->combine_values( $this->cache[$derived_key], $value, 'pre' );
+                        $this->add_to_internal_cache( $derived_key, $combined );
+                        return true;
+                }
+
+                // Append to Memcached value
+                if ( $byKey )
+                        $result = $this->m->prependByKey( $server_key, $derived_key, $value );
+                else
+                        $result = $this->m->prepend( $derived_key, $value );
+
+                // Store in runtime cache if add was successful
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() ) {
+                        $combined = $this->combine_values( $this->cache[$derived_key], $value, 'pre' );
+                        $this->add_to_internal_cache( $derived_key, $combined );
+                }
+
+                return $result;
+        }
+
+        /**
+         * Append data to an existing item by server key.
+         *
+         * This method should throw an error if it is used with compressed data. This is an expected behavior.
+         * Memcached casts the value to be prepended to the initial value to the type of the initial value. Be
+         * careful as this leads to unexpected behavior at times. For instance, prepending (float) 45.23 to
+         * (int) 23 will result in 45, because the value is first combined (45.2323) then cast to "integer"
+         * (the original value), which will be (int) 45. Due to how memcached treats types, the behavior has been
+         * mimicked in the internal cache to produce similar results and improve consistency. It is recommend
+         * that prepends only occur with data of the same type.
+         *
+         * @link    http://www.php.net/manual/en/memcached.prependbykey.php
+         *
+         * @param   string    $server_key   The key identifying the server to store the value on.
+         * @param   string    $key          The key under which to store the value.
+         * @param   string    $value        Must be string as prepending mixed values is not well-defined.
+         * @param   string    $group        The group value prepended to the $key.
+         * @return  bool                    Returns TRUE on success or FALSE on failure.
+         */
+        public function prependByKey( $server_key, $key, $value, $group = 'default' ) {
+                return $this->prepend( $key, $value, $group, $server_key, true );
+        }
+
+        /**
+         * Replaces a value in cache.
+         *
+         * This method is similar to "add"; however, is does not successfully set a value if
+         * the object's key is not already set in cache.
+         *
+         * @link    http://www.php.net/manual/en/memcached.replace.php
+         *
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          The value to store.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   bool        $byKey          True to store in internal cache by key; false to not store by key
+         * @param   int         $expiration     The expiration time, defaults to 0.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function replace( $key, $value, $group = 'default', $expiration = 0, $server_key = '', $byKey = false ) {
+                $derived_key = $this->buildKey( $key, $group );
+                $expiration  = $this->sanitize_expiration( $expiration );
+
+                // If group is a non-Memcached group, save to runtime cache, not Memcached
+                if ( in_array( $group, $this->no_mc_groups ) ) {
+
+                        // Replace won't save unless the key already exists; mimic this behavior here
+                        if ( ! isset( $this->cache[$derived_key] ) )
+                                return false;
+
+                        $this->cache[$derived_key] = $value;
+                        return true;
+                }
+
+                // Save to Memcached
+                if ( $byKey )
+                        $result = $this->m->replaceByKey( $server_key, $derived_key, $value, $expiration );
+                else
+                        $result = $this->m->replace( $derived_key, $value, $expiration );
+
+                // Store in runtime cache if add was successful
+                if ( Memcached::RES_SUCCESS === $this->getResultCode() )
+                        $this->add_to_internal_cache( $derived_key, $value );
+
+                return $result;
+        }
+
+        /**
+         * Replaces a value in cache on a specific server.
+         *
+         * This method is similar to "addByKey"; however, is does not successfully set a value if
+         * the object's key is not already set in cache.
+         *
+         * @link    http://www.php.net/manual/en/memcached.addbykey.php
+         *
+         * @param   string      $server_key     The key identifying the server to store the value on.
+         * @param   string      $key            The key under which to store the value.
+         * @param   mixed       $value          The value to store.
+         * @param   string      $group          The group value appended to the $key.
+         * @param   int         $expiration     The expiration time, defaults to 0.
+         * @return  bool                        Returns TRUE on success or FALSE on failure.
+         */
+        public function replaceByKey( $server_key, $key, $value, $group = 'default', $expiration = 0 ) {
+                return $this->replace( $key, $value, $group, $expiration, $server_key, true );
+        }
+
+        /**
+         * Sets a value in cache.
+         *
+         * The value is set whether or not this key already exists in memcached.
+         *
+         * @link http://www.php.net/manual/en/memcached.set.php
+         *
+         * @param   string&nbs