Index: src/wp-admin/includes/ajax-actions.php
===================================================================
--- src/wp-admin/includes/ajax-actions.php	(revision 53020)
+++ src/wp-admin/includes/ajax-actions.php	(working copy)
@@ -148,7 +148,7 @@
 	 * Require $term_search_min_chars chars for matching (default: 2)
 	 * ensure it's a non-negative, non-zero integer.
 	 */
-	if ( ( 0 == $term_search_min_chars ) || ( strlen( $s ) < $term_search_min_chars ) ) {
+	if ( ( 0 === $term_search_min_chars ) || ( strlen( $s ) < $term_search_min_chars ) ) {
 		wp_die();
 	}
 
@@ -188,10 +188,10 @@
 		$force_gzip = ( defined( 'ENFORCE_GZIP' ) && ENFORCE_GZIP );
 		$test_str   = '"wpCompressionTest Lorem ipsum dolor sit amet consectetuer mollis sapien urna ut a. Eu nonummy condimentum fringilla tempor pretium platea vel nibh netus Maecenas. Hac molestie amet justo quis pellentesque est ultrices interdum nibh Morbi. Cras mattis pretium Phasellus ante ipsum ipsum ut sociis Suspendisse Lorem. Ante et non molestie. Porta urna Vestibulum egestas id congue nibh eu risus gravida sit. Ac augue auctor Ut et non a elit massa id sodales. Elit eu Nulla at nibh adipiscing mattis lacus mauris at tempus. Netus nibh quis suscipit nec feugiat eget sed lorem et urna. Pellentesque lacus at ut massa consectetuer ligula ut auctor semper Pellentesque. Ut metus massa nibh quam Curabitur molestie nec mauris congue. Volutpat molestie elit justo facilisis neque ac risus Ut nascetur tristique. Vitae sit lorem tellus et quis Phasellus lacus tincidunt nunc Fusce. Pharetra wisi Suspendisse mus sagittis libero lacinia Integer consequat ac Phasellus. Et urna ac cursus tortor aliquam Aliquam amet tellus volutpat Vestibulum. Justo interdum condimentum In augue congue tellus sollicitudin Quisque quis nibh."';
 
-		if ( 1 == $_GET['test'] ) {
+		if ( 1 === $_GET['test'] ) {
 			echo $test_str;
 			wp_die();
-		} elseif ( 2 == $_GET['test'] ) {
+		} elseif ( 2 === $_GET['test'] ) {
 			if ( ! isset( $_SERVER['HTTP_ACCEPT_ENCODING'] ) ) {
 				wp_die( -1 );
 			}
@@ -482,7 +482,7 @@
 	}
 
 	// Only do the expensive stuff on a page-break, and about 1 other time per page.
-	if ( 0 == $total % $per_page || 1 == mt_rand( 1, $per_page ) ) {
+	if ( 0 === $total % $per_page || 1 === mt_rand( 1, $per_page ) ) {
 		$post_id = 0;
 		// What type of comment count are we looking for?
 		$status = 'all';
@@ -702,13 +702,13 @@
 	$status = wp_get_comment_status( $comment );
 	$delta  = -1;
 
-	if ( isset( $_POST['trash'] ) && 1 == $_POST['trash'] ) {
+	if ( isset( $_POST['trash'] ) && 1 === $_POST['trash'] ) {
 		if ( 'trash' === $status ) {
 			wp_die( time() );
 		}
 
 		$r = wp_trash_comment( $comment );
-	} elseif ( isset( $_POST['untrash'] ) && 1 == $_POST['untrash'] ) {
+	} elseif ( isset( $_POST['untrash'] ) && 1 === $_POST['untrash'] ) {
 		if ( 'trash' !== $status ) {
 			wp_die( time() );
 		}
@@ -719,13 +719,13 @@
 		if ( ! isset( $_POST['comment_status'] ) || 'trash' !== $_POST['comment_status'] ) {
 			$delta = 1;
 		}
-	} elseif ( isset( $_POST['spam'] ) && 1 == $_POST['spam'] ) {
+	} elseif ( isset( $_POST['spam'] ) && 1 === $_POST['spam'] ) {
 		if ( 'spam' === $status ) {
 			wp_die( time() );
 		}
 
 		$r = wp_spam_comment( $comment );
-	} elseif ( isset( $_POST['unspam'] ) && 1 == $_POST['unspam'] ) {
+	} elseif ( isset( $_POST['unspam'] ) && 1 === $_POST['unspam'] ) {
 		if ( 'spam' !== $status ) {
 			wp_die( time() );
 		}
@@ -736,7 +736,7 @@
 		if ( ! isset( $_POST['comment_status'] ) || 'spam' !== $_POST['comment_status'] ) {
 			$delta = 1;
 		}
-	} elseif ( isset( $_POST['delete'] ) && 1 == $_POST['delete'] ) {
+	} elseif ( isset( $_POST['delete'] ) && 1 === $_POST['delete'] ) {
 		$r = wp_delete_comment( $comment );
 	} else {
 		wp_die( -1 );
@@ -969,7 +969,7 @@
 
 	$current = wp_get_comment_status( $comment );
 
-	if ( isset( $_POST['new'] ) && $_POST['new'] == $current ) {
+	if ( isset( $_POST['new'] ) && $_POST['new'] === $current ) {
 		wp_die( time() );
 	}
 
@@ -1299,7 +1299,7 @@
 				$_POST['_wp_unfiltered_html_comment'] = '';
 			}
 
-			if ( wp_create_nonce( 'unfiltered-html-comment' ) != $_POST['_wp_unfiltered_html_comment'] ) {
+			if ( wp_create_nonce( 'unfiltered-html-comment' ) !== $_POST['_wp_unfiltered_html_comment'] ) {
 				kses_remove_filters(); // Start with a clean slate.
 				kses_init_filters();   // Set up the filters.
 				remove_filter( 'pre_comment_content', 'wp_filter_post_kses' );
@@ -1327,7 +1327,7 @@
 	if ( ! empty( $_POST['approve_parent'] ) ) {
 		$parent = get_comment( $comment_parent );
 
-		if ( $parent && '0' === $parent->comment_approved && $parent->comment_post_ID == $comment_post_ID ) {
+		if ( $parent && '0' === $parent->comment_approved && $parent->comment_post_ID === $comment_post_ID ) {
 			if ( ! current_user_can( 'edit_comment', $parent->comment_ID ) ) {
 				wp_die( -1 );
 			}
@@ -1426,7 +1426,7 @@
 	}
 
 	$position      = ( isset( $_POST['position'] ) && (int) $_POST['position'] ) ? (int) $_POST['position'] : '-1';
-	$checkbox      = ( isset( $_POST['checkbox'] ) && true == $_POST['checkbox'] ) ? 1 : 0;
+	$checkbox      = ( isset( $_POST['checkbox'] ) && true === $_POST['checkbox'] ) ? 1 : 0;
 	$wp_list_table = _get_list_table( $checkbox ? 'WP_Comments_List_Table' : 'WP_Post_Comments_List_Table', array( 'screen' => 'edit-comments' ) );
 
 	$comment = get_comment( $comment_id );
@@ -1635,7 +1635,7 @@
 			wp_die( -1 );
 		}
 
-		if ( $meta->meta_value != $value || $meta->meta_key != $key ) {
+		if ( $meta->meta_value !== $value || $meta->meta_key !== $key ) {
 			$u = update_metadata_by_mid( 'post', $mid, $value, $key );
 			if ( ! $u ) {
 				wp_die( 0 ); // We know meta exists; we also know it's unchanged (or DB error, in which case there are bigger problems).
@@ -1733,7 +1733,7 @@
 
 	$page = isset( $_POST['page'] ) ? $_POST['page'] : '';
 
-	if ( sanitize_key( $page ) != $page ) {
+	if ( sanitize_key( $page ) !== $page ) {
 		wp_die( 0 );
 	}
 
@@ -1764,7 +1764,7 @@
 	check_ajax_referer( 'screen-options-nonce', 'screenoptionnonce' );
 	$page = isset( $_POST['page'] ) ? $_POST['page'] : '';
 
-	if ( sanitize_key( $page ) != $page ) {
+	if ( sanitize_key( $page ) !== $page ) {
 		wp_die( 0 );
 	}
 
@@ -1919,7 +1919,7 @@
 
 	$page = isset( $_POST['page'] ) ? $_POST['page'] : '';
 
-	if ( sanitize_key( $page ) != $page ) {
+	if ( sanitize_key( $page ) !== $page ) {
 		wp_die( 0 );
 	}
 
@@ -2347,7 +2347,7 @@
 
 	foreach ( (array) $wp_registered_widget_updates as $name => $control ) {
 
-		if ( $name == $id_base ) {
+		if ( $name === $id_base ) {
 			if ( ! is_callable( $control['callback'] ) ) {
 				continue;
 			}
@@ -2673,7 +2673,7 @@
 		check_ajax_referer( "set_post_thumbnail-$post_ID" );
 	}
 
-	if ( '-1' == $thumbnail_id ) {
+	if ( '-1' === $thumbnail_id ) {
 		if ( delete_post_thumbnail( $post_ID ) ) {
 			$return = _wp_post_thumbnail_html( null, $post_ID );
 			$json ? wp_send_json_success( $return ) : wp_die( $return );
@@ -2853,7 +2853,7 @@
 
 	$active_lock = array_map( 'absint', explode( ':', $_POST['active_post_lock'] ) );
 
-	if ( get_current_user_id() != $active_lock[1] ) {
+	if ( get_current_user_id() !== $active_lock[1] ) {
 		wp_die( 0 );
 	}
 
@@ -2878,7 +2878,7 @@
 function wp_ajax_dismiss_wp_pointer() {
 	$pointer = $_POST['pointer'];
 
-	if ( sanitize_key( $pointer ) != $pointer ) {
+	if ( sanitize_key( $pointer ) !== $pointer ) {
 		wp_die( 0 );
 	}
 
@@ -3249,7 +3249,7 @@
 		// If this attachment is unattached, attach it. Primarily a back compat thing.
 		$insert_into_post_id = (int) $_POST['post_id'];
 
-		if ( 0 == $post->post_parent && $insert_into_post_id ) {
+		if ( 0 === $post->post_parent && $insert_into_post_id ) {
 			wp_update_post(
 				array(
 					'ID'          => $id,
@@ -3260,7 +3260,7 @@
 	}
 
 	$url = empty( $attachment['url'] ) ? '' : $attachment['url'];
-	$rel = ( strpos( $url, 'attachment_id' ) || get_attachment_link( $id ) == $url );
+	$rel = ( strpos( $url, 'attachment_id' ) || get_attachment_link( $id ) === $url );
 
 	remove_filter( 'media_send_to_editor', 'image_media_send_to_editor' );
 
@@ -3929,7 +3929,7 @@
 			$wp_site_icon = new WP_Site_Icon();
 
 			// Skip creating a new attachment if the attachment is a Site Icon.
-			if ( get_post_meta( $attachment_id, '_wp_attachment_context', true ) == $context ) {
+			if ( get_post_meta( $attachment_id, '_wp_attachment_context', true ) === $context ) {
 
 				// Delete the temporary cropped file, we don't need it.
 				wp_delete_file( $cropped );
Index: src/wp-admin/includes/class-wp-importer.php
===================================================================
--- src/wp-admin/includes/class-wp-importer.php	(revision 53020)
+++ src/wp-admin/includes/class-wp-importer.php	(working copy)
@@ -40,7 +40,7 @@
 					$hashtable[ $r->meta_value ] = (int) $r->post_id;
 				}
 			}
-		} while ( count( $results ) == $limit );
+		} while ( count( $results ) === $limit );
 
 		return $hashtable;
 	}
@@ -104,12 +104,12 @@
 					$source_comment_id = (int) $source_comment_id;
 
 					// Check if this comment came from this blog.
-					if ( $blog_id == $comment_agent_blog_id ) {
+					if ( $blog_id === $comment_agent_blog_id ) {
 						$hashtable[ $source_comment_id ] = (int) $r->comment_ID;
 					}
 				}
 			}
-		} while ( count( $results ) == $limit );
+		} while ( count( $results ) === $limit );
 
 		return $hashtable;
 	}
Index: src/wp-admin/includes/class-wp-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-list-table.php	(revision 53020)
+++ src/wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -526,7 +526,7 @@
 			return false;
 		}
 
-		if ( isset( $_REQUEST['action'] ) && -1 != $_REQUEST['action'] ) {
+		if ( isset( $_REQUEST['action'] ) && -1 !== $_REQUEST['action'] ) {
 			return $_REQUEST['action'];
 		}
 
@@ -643,7 +643,7 @@
 
 		$month_count = count( $months );
 
-		if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) {
+		if ( ! $month_count || ( 1 === $month_count && 0 === $months[0]->month ) ) {
 			return;
 		}
 
@@ -654,7 +654,7 @@
 			<option<?php selected( $m, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option>
 		<?php
 		foreach ( $months as $arc_row ) {
-			if ( 0 == $arc_row->year ) {
+			if ( 0 === $arc_row->year ) {
 				continue;
 			}
 
@@ -906,11 +906,11 @@
 		$disable_prev  = false;
 		$disable_next  = false;
 
-		if ( 1 == $current ) {
+		if ( 1 === $current ) {
 			$disable_first = true;
 			$disable_prev  = true;
 		}
-		if ( $total_pages == $current ) {
+		if ( $total_pages === $current ) {
 			$disable_last = true;
 			$disable_next = true;
 		}
Index: src/wp-admin/includes/class-wp-ms-sites-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-ms-sites-list-table.php	(revision 53020)
+++ src/wp-admin/includes/class-wp-ms-sites-list-table.php	(working copy)
@@ -591,7 +591,7 @@
 			reset( $this->status_list );
 
 			foreach ( $this->status_list as $status => $col ) {
-				if ( 1 == $blog[ $status ] ) {
+				if ( 1 === $blog[ $status ] ) {
 					$class = " class='{$col[0]}'";
 				}
 			}
@@ -706,20 +706,20 @@
 
 		$actions['edit']    = '<a href="' . esc_url( network_admin_url( 'site-info.php?id=' . $blog['blog_id'] ) ) . '">' . __( 'Edit' ) . '</a>';
 		$actions['backend'] = "<a href='" . esc_url( get_admin_url( $blog['blog_id'] ) ) . "' class='edit'>" . __( 'Dashboard' ) . '</a>';
-		if ( get_network()->site_id != $blog['blog_id'] ) {
-			if ( '1' == $blog['deleted'] ) {
+		if ( get_network()->site_id !== $blog['blog_id'] ) {
+			if ( '1' === $blog['deleted'] ) {
 				$actions['activate'] = '<a href="' . esc_url( wp_nonce_url( network_admin_url( 'sites.php?action=confirm&amp;action2=activateblog&amp;id=' . $blog['blog_id'] ), 'activateblog_' . $blog['blog_id'] ) ) . '">' . __( 'Activate' ) . '</a>';
 			} else {
 				$actions['deactivate'] = '<a href="' . esc_url( wp_nonce_url( network_admin_url( 'sites.php?action=confirm&amp;action2=deactivateblog&amp;id=' . $blog['blog_id'] ), 'deactivateblog_' . $blog['blog_id'] ) ) . '">' . __( 'Deactivate' ) . '</a>';
 			}
 
-			if ( '1' == $blog['archived'] ) {
+			if ( '1' === $blog['archived'] ) {
 				$actions['unarchive'] = '<a href="' . esc_url( wp_nonce_url( network_admin_url( 'sites.php?action=confirm&amp;action2=unarchiveblog&amp;id=' . $blog['blog_id'] ), 'unarchiveblog_' . $blog['blog_id'] ) ) . '">' . __( 'Unarchive' ) . '</a>';
 			} else {
 				$actions['archive'] = '<a href="' . esc_url( wp_nonce_url( network_admin_url( 'sites.php?action=confirm&amp;action2=archiveblog&amp;id=' . $blog['blog_id'] ), 'archiveblog_' . $blog['blog_id'] ) ) . '">' . _x( 'Archive', 'verb; site' ) . '</a>';
 			}
 
-			if ( '1' == $blog['spam'] ) {
+			if ( '1' === $blog['spam'] ) {
 				$actions['unspam'] = '<a href="' . esc_url( wp_nonce_url( network_admin_url( 'sites.php?action=confirm&amp;action2=unspamblog&amp;id=' . $blog['blog_id'] ), 'unspamblog_' . $blog['blog_id'] ) ) . '">' . _x( 'Not Spam', 'site' ) . '</a>';
 			} else {
 				$actions['spam'] = '<a href="' . esc_url( wp_nonce_url( network_admin_url( 'sites.php?action=confirm&amp;action2=spamblog&amp;id=' . $blog['blog_id'] ), 'spamblog_' . $blog['blog_id'] ) ) . '">' . _x( 'Spam', 'site' ) . '</a>';
Index: src/wp-admin/includes/class-wp-privacy-policy-content.php
===================================================================
--- src/wp-admin/includes/class-wp-privacy-policy-content.php	(revision 53020)
+++ src/wp-admin/includes/class-wp-privacy-policy-content.php	(working copy)
@@ -104,7 +104,7 @@
 
 		// The == operator (equal, not identical) was used intentionally.
 		// See http://php.net/manual/en/language.operators.array.php
-		if ( $new != $old ) {
+		if ( $new !== $old ) {
 			// A plugin was activated or deactivated, or some policy text has changed.
 			// Show a notice on the relevant screens to inform the admin.
 			add_action( 'admin_notices', array( 'WP_Privacy_Policy_Content', 'policy_text_changed_notice' ) );
Index: src/wp-admin/includes/class-wp-site-icon.php
===================================================================
--- src/wp-admin/includes/class-wp-site-icon.php	(revision 53020)
+++ src/wp-admin/includes/class-wp-site-icon.php	(working copy)
@@ -202,7 +202,7 @@
 	public function delete_attachment_data( $post_id ) {
 		$site_icon_id = get_option( 'site_icon' );
 
-		if ( $site_icon_id && $post_id == $site_icon_id ) {
+		if ( $site_icon_id && $post_id === $site_icon_id ) {
 			delete_option( 'site_icon' );
 		}
 	}
@@ -223,7 +223,7 @@
 		if ( $single && '_wp_attachment_backup_sizes' === $meta_key ) {
 			$site_icon_id = get_option( 'site_icon' );
 
-			if ( $post_id == $site_icon_id ) {
+			if ( $post_id === $site_icon_id ) {
 				add_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
 			}
 		}
Index: src/wp-admin/includes/image-edit.php
===================================================================
--- src/wp-admin/includes/image-edit.php	(revision 53020)
+++ src/wp-admin/includes/image-edit.php	(working copy)
@@ -554,7 +554,7 @@
 		$filtered = array( $changes[0] );
 		for ( $i = 0, $j = 1, $c = count( $changes ); $j < $c; $j++ ) {
 			$combined = false;
-			if ( $filtered[ $i ]->type == $changes[ $j ]->type ) {
+			if ( $filtered[ $i ]->type === $changes[ $j ]->type ) {
 				switch ( $filtered[ $i ]->type ) {
 					case 'rotate':
 						$filtered[ $i ]->angle += $changes[ $j ]->angle;
@@ -603,7 +603,7 @@
 	foreach ( $changes as $operation ) {
 		switch ( $operation->type ) {
 			case 'rotate':
-				if ( 0 != $operation->angle ) {
+				if ( 0 !== $operation->angle ) {
 					if ( $image instanceof WP_Image_Editor ) {
 						$image->rotate( $operation->angle );
 					} else {
@@ -612,11 +612,11 @@
 				}
 				break;
 			case 'flip':
-				if ( 0 != $operation->axis ) {
+				if ( 0 !== $operation->axis ) {
 					if ( $image instanceof WP_Image_Editor ) {
-						$image->flip( ( $operation->axis & 1 ) != 0, ( $operation->axis & 2 ) != 0 );
+						$image->flip( ( $operation->axis & 1 ) !== 0, ( $operation->axis & 2 ) !== 0 );
 					} else {
-						$image = _flip_image_resource( $image, ( $operation->axis & 1 ) != 0, ( $operation->axis & 2 ) != 0 );
+						$image = _flip_image_resource( $image, ( $operation->axis & 1 ) !== 0, ( $operation->axis & 2 ) !== 0 );
 					}
 				}
 				break;
@@ -711,7 +711,7 @@
 	if ( isset( $backup_sizes['full-orig'] ) && is_array( $backup_sizes['full-orig'] ) ) {
 		$data = $backup_sizes['full-orig'];
 
-		if ( $parts['basename'] != $data['file'] ) {
+		if ( $parts['basename'] !== $data['file'] ) {
 			if ( defined( 'IMAGE_EDIT_OVERWRITE' ) && IMAGE_EDIT_OVERWRITE ) {
 
 				// Delete only if it's an edited image.
@@ -738,7 +738,7 @@
 	foreach ( $default_sizes as $default_size ) {
 		if ( isset( $backup_sizes[ "$default_size-orig" ] ) ) {
 			$data = $backup_sizes[ "$default_size-orig" ];
-			if ( isset( $meta['sizes'][ $default_size ] ) && $meta['sizes'][ $default_size ]['file'] != $data['file'] ) {
+			if ( isset( $meta['sizes'][ $default_size ] ) && $meta['sizes'][ $default_size ]['file'] !== $data['file'] ) {
 				if ( defined( 'IMAGE_EDIT_OVERWRITE' ) && IMAGE_EDIT_OVERWRITE ) {
 
 					// Delete only if it's an edited image.
@@ -853,7 +853,7 @@
 	$suffix   = time() . rand( 100, 999 );
 
 	if ( defined( 'IMAGE_EDIT_OVERWRITE' ) && IMAGE_EDIT_OVERWRITE &&
-		isset( $backup_sizes['full-orig'] ) && $backup_sizes['full-orig']['file'] != $basename ) {
+		isset( $backup_sizes['full-orig'] ) && $backup_sizes['full-orig']['file'] !== $basename ) {
 
 		if ( 'thumbnail' === $target ) {
 			$new_path = "{$dirname}/{$filename}-temp.{$ext}";
@@ -943,7 +943,7 @@
 			$tag = false;
 			if ( isset( $meta['sizes'][ $size ] ) ) {
 				if ( isset( $backup_sizes[ "$size-orig" ] ) ) {
-					if ( ( ! defined( 'IMAGE_EDIT_OVERWRITE' ) || ! IMAGE_EDIT_OVERWRITE ) && $backup_sizes[ "$size-orig" ]['file'] != $meta['sizes'][ $size ]['file'] ) {
+					if ( ( ! defined( 'IMAGE_EDIT_OVERWRITE' ) || ! IMAGE_EDIT_OVERWRITE ) && $backup_sizes[ "$size-orig" ]['file'] !== $meta['sizes'][ $size ]['file'] ) {
 						$tag = "$size-$suffix";
 					}
 				} else {
Index: src/wp-admin/includes/media.php
===================================================================
--- src/wp-admin/includes/media.php	(revision 53020)
+++ src/wp-admin/includes/media.php	(working copy)
@@ -93,7 +93,7 @@
 		foreach ( $tabs as $callback => $text ) {
 			$class = '';
 
-			if ( $current == $callback ) {
+			if ( $current === $callback ) {
 				$class = " class='current'";
 			}
 
@@ -750,7 +750,7 @@
 				$post['menu_order'] = $attachment['menu_order'];
 			}
 
-			if ( isset( $send_id ) && $attachment_id == $send_id ) {
+			if ( isset( $send_id ) && $attachment_id === $send_id ) {
 				if ( isset( $attachment['post_parent'] ) ) {
 					$post['post_parent'] = $attachment['post_parent'];
 				}
@@ -784,7 +784,7 @@
 				unset( $post['errors'] );
 			}
 
-			if ( $post != $_post ) {
+			if ( $post !== $_post ) {
 				wp_update_post( $post );
 			}
 
@@ -814,7 +814,7 @@
 		if ( ! empty( $attachment['url'] ) ) {
 			$rel = '';
 
-			if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) == $attachment['url'] ) {
+			if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) === $attachment['url'] ) {
 				$rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";
 			}
 
@@ -1146,7 +1146,7 @@
 	foreach ( $alignments as $name => $label ) {
 		$name  = esc_attr( $name );
 		$out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'" .
-			( $checked == $name ? " checked='checked'" : '' ) .
+			( $checked === $name ? " checked='checked'" : '' ) .
 			" /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
 	}
 
@@ -1196,7 +1196,7 @@
 		$css_id  = "image-size-{$size}-{$post->ID}";
 
 		// If this size is the default but that's not available, don't select it.
-		if ( $size == $check ) {
+		if ( $size === $check ) {
 			if ( $enabled ) {
 				$checked = " checked='checked'";
 			} else {
@@ -1336,7 +1336,7 @@
  */
 function image_attachment_fields_to_save( $post, $attachment ) {
 	if ( 'image' === substr( $post['post_mime_type'], 0, 5 ) ) {
-		if ( strlen( trim( $post['post_title'] ) ) == 0 ) {
+		if ( strlen( trim( $post['post_title'] ) ) === 0 ) {
 			$attachment_url                           = ( isset( $post['attachment_url'] ) ) ? $post['attachment_url'] : $post['guid'];
 			$post['post_title']                       = preg_replace( '/\.\w+$/', '', wp_basename( $attachment_url ) );
 			$post['errors']['post_title']['errors'][] = __( 'Empty Title filled from filename.' );
@@ -1761,7 +1761,7 @@
 	if ( 'image' === $type && $calling_post_id
 		&& current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) )
 		&& post_type_supports( get_post_type( $calling_post_id ), 'thumbnail' )
-		&& get_post_thumbnail_id( $calling_post_id ) != $attachment_id
+		&& get_post_thumbnail_id( $calling_post_id ) !== $attachment_id
 	) {
 
 		$calling_post             = get_post( $calling_post_id );
@@ -2840,7 +2840,7 @@
 		$month_count    = count( $arc_result );
 		$selected_month = isset( $_GET['m'] ) ? $_GET['m'] : 0;
 
-		if ( $month_count && ! ( 1 == $month_count && 0 == $arc_result[0]->mmonth ) ) {
+		if ( $month_count && ! ( 1 === $month_count && 0 === $arc_result[0]->mmonth ) ) {
 			?>
 			<select name='m'>
 			<option<?php selected( $selected_month, 0 ); ?> value='0'><?php _e( 'All dates' ); ?></option>
@@ -2847,13 +2847,13 @@
 			<?php
 
 			foreach ( $arc_result as $arc_row ) {
-				if ( 0 == $arc_row->yyear ) {
+				if ( 0 === $arc_row->yyear ) {
 					continue;
 				}
 
 				$arc_row->mmonth = zeroise( $arc_row->mmonth, 2 );
 
-				if ( $arc_row->yyear . $arc_row->mmonth == $selected_month ) {
+				if ( $arc_row->yyear . $arc_row->mmonth === $selected_month ) {
 					$default = ' selected="selected"';
 				} else {
 					$default = '';
Index: src/wp-admin/includes/menu.php
===================================================================
--- src/wp-admin/includes/menu.php	(revision 53020)
+++ src/wp-admin/includes/menu.php	(working copy)
@@ -106,7 +106,7 @@
 	 * If the first submenu is not the same as the assigned parent,
 	 * make the first submenu the new parent.
 	 */
-	if ( $new_parent != $old_parent ) {
+	if ( $new_parent !== $old_parent ) {
 		$_wp_real_parent_file[ $old_parent ] = $new_parent;
 		$menu[ $id ][2]                      = $new_parent;
 
@@ -171,7 +171,7 @@
 	if ( ! empty( $submenu[ $data[2] ] ) && 1 === count( $submenu[ $data[2] ] ) ) {
 		$subs      = $submenu[ $data[2] ];
 		$first_sub = reset( $subs );
-		if ( $data[2] == $first_sub[2] ) {
+		if ( $data[2] === $first_sub[2] ) {
 			unset( $submenu[ $data[2] ] );
 		}
 	}
@@ -208,7 +208,7 @@
 	foreach ( $menu as $order => $top ) {
 		$i++;
 
-		if ( 0 == $order ) { // Dashboard is always shown/single.
+		if ( 0 === $order ) { // Dashboard is always shown/single.
 			$menu[0][4] = add_cssclass( 'menu-top-first', $top[4] );
 			$lastorder  = 0;
 			continue;
@@ -227,7 +227,7 @@
 			$first             = false;
 		}
 
-		if ( $mc == $i ) { // Last item.
+		if ( $mc === $i ) { // Last item.
 			$c                 = $menu[ $order ][4];
 			$menu[ $order ][4] = add_cssclass( 'menu-top-last', $c );
 		}
@@ -297,7 +297,7 @@
 		} elseif ( ! isset( $menu_order[ $a ] ) && isset( $menu_order[ $b ] ) ) {
 			return 1;
 		} elseif ( isset( $menu_order[ $a ] ) && isset( $menu_order[ $b ] ) ) {
-			if ( $menu_order[ $a ] == $menu_order[ $b ] ) {
+			if ( $menu_order[ $a ] === $menu_order[ $b ] ) {
 				return 0;
 			}
 			return ( $menu_order[ $a ] < $menu_order[ $b ] ) ? -1 : 1;
Index: src/wp-admin/includes/meta-boxes.php
===================================================================
--- src/wp-admin/includes/meta-boxes.php	(revision 53020)
+++ src/wp-admin/includes/meta-boxes.php	(working copy)
@@ -973,7 +973,7 @@
 		endif; // End empty pages check.
 	endif;  // End hierarchical check.
 
-	if ( count( get_page_templates( $post ) ) > 0 && get_option( 'page_for_posts' ) != $post->ID ) :
+	if ( count( get_page_templates( $post ) ) > 0 && get_option( 'page_for_posts' ) !== $post->ID ) :
 		$template = ! empty( $post->page_template ) ? $post->page_template : false;
 		?>
 <p class="post-attributes-label-wrapper page-template-label-wrapper"><label class="post-attributes-label" for="page_template"><?php _e( 'Template' ); ?></label>
@@ -1366,7 +1366,7 @@
 		<?php
 		for ( $rating = 0; $rating <= 10; $rating++ ) {
 			echo '<option value="' . $rating . '"';
-			if ( isset( $link->link_rating ) && $link->link_rating == $rating ) {
+			if ( isset( $link->link_rating ) && $link->link_rating === $rating ) {
 				echo ' selected="selected"';
 			}
 			echo '>' . $rating . '</option>';
Index: src/wp-admin/includes/nav-menu.php
===================================================================
--- src/wp-admin/includes/nav-menu.php	(revision 53020)
+++ src/wp-admin/includes/nav-menu.php	(working copy)
@@ -926,7 +926,7 @@
 	$menu_id     = (int) $menu_id;
 	$items_saved = array();
 
-	if ( 0 == $menu_id || is_nav_menu( $menu_id ) ) {
+	if ( 0 === $menu_id || is_nav_menu( $menu_id ) ) {
 
 		// Loop through all the menu items' POST values.
 		foreach ( (array) $menu_data as $_possible_db_id => $_item_object_data ) {
@@ -952,7 +952,7 @@
 			if (
 				empty( $_item_object_data['menu-item-db-id'] ) ||
 				( 0 > $_possible_db_id ) ||
-				$_possible_db_id != $_item_object_data['menu-item-db-id']
+				$_possible_db_id !== $_item_object_data['menu-item-db-id']
 			) {
 				$_actual_db_id = 0;
 			} else {
@@ -1199,7 +1199,7 @@
 				$args[ $field ] = isset( $_POST[ $field ][ $_key ] ) ? $_POST[ $field ][ $_key ] : '';
 			}
 
-			$menu_item_db_id = wp_update_nav_menu_item( $nav_menu_selected_id, ( $_POST['menu-item-db-id'][ $_key ] != $_key ? 0 : $_key ), $args );
+			$menu_item_db_id = wp_update_nav_menu_item( $nav_menu_selected_id, ( $_POST['menu-item-db-id'][ $_key ] !== $_key ? 0 : $_key ), $args );
 
 			if ( is_wp_error( $menu_item_db_id ) ) {
 				$messages[] = '<div id="message" class="error"><p>' . $menu_item_db_id->get_error_message() . '</p></div>';
@@ -1289,7 +1289,7 @@
 
 			// Build the new array value from leaf to trunk.
 			for ( $i = count( $array_bits ) - 1; $i >= 0; $i-- ) {
-				if ( count( $array_bits ) - 1 == $i ) {
+				if ( count( $array_bits ) - 1 === $i ) {
 					$new_post_data[ $array_bits[ $i ] ] = wp_slash( $post_input_data->value );
 				} else {
 					$new_post_data = array( $array_bits[ $i ] => $new_post_data );
Index: src/wp-admin/includes/post.php
===================================================================
--- src/wp-admin/includes/post.php	(revision 53020)
+++ src/wp-admin/includes/post.php	(working copy)
@@ -72,7 +72,7 @@
 		}
 	}
 
-	if ( isset( $post_data['user_ID'] ) && ( $post_data['post_author'] != $post_data['user_ID'] )
+	if ( isset( $post_data['user_ID'] ) && ( $post_data['post_author'] !== $post_data['user_ID'] )
 		&& ! current_user_can( $ptype->cap->edit_others_posts ) ) {
 
 		if ( $update ) {
@@ -163,7 +163,7 @@
 	}
 
 	foreach ( array( 'aa', 'mm', 'jj', 'hh', 'mn' ) as $timeunit ) {
-		if ( ! empty( $post_data[ 'hidden_' . $timeunit ] ) && $post_data[ 'hidden_' . $timeunit ] != $post_data[ $timeunit ] ) {
+		if ( ! empty( $post_data[ 'hidden_' . $timeunit ] ) && $post_data[ 'hidden_' . $timeunit ] !== $post_data[ $timeunit ] ) {
 			$post_data['edit_date'] = '1';
 			break;
 		}
@@ -360,7 +360,7 @@
 			if ( ! $meta ) {
 				continue;
 			}
-			if ( $meta->post_id != $post_ID ) {
+			if ( $meta->post_id !== $post_ID ) {
 				continue;
 			}
 			if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'edit_post_meta', $post_ID, $meta->meta_key ) ) {
@@ -379,7 +379,7 @@
 			if ( ! $meta ) {
 				continue;
 			}
-			if ( $meta->post_id != $post_ID ) {
+			if ( $meta->post_id !== $post_ID ) {
 				continue;
 			}
 			if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'delete_post_meta', $post_ID, $meta->meta_key ) ) {
@@ -489,7 +489,7 @@
 		}
 	}
 
-	if ( -1 == $post_data['_status'] ) {
+	if ( -1 === $post_data['_status'] ) {
 		$post_data['post_status'] = null;
 		unset( $post_data['post_status'] );
 	} else {
@@ -523,7 +523,7 @@
 	);
 
 	foreach ( $reset as $field ) {
-		if ( isset( $post_data[ $field ] ) && ( '' === $post_data[ $field ] || -1 == $post_data[ $field ] ) ) {
+		if ( isset( $post_data[ $field ] ) && ( '' === $post_data[ $field ] || -1 === $post_data[ $field ] ) ) {
 			unset( $post_data[ $field ] );
 		}
 	}
@@ -1106,7 +1106,7 @@
 		$url_id = (int) $url_match[2];
 		$rel_id = (int) $rel_match[1];
 
-		if ( ! $url_id || ! $rel_id || $url_id != $rel_id || strpos( $url_match[0], $site_url ) === false ) {
+		if ( ! $url_id || ! $rel_id || $url_id !== $rel_id || strpos( $url_match[0], $site_url ) === false ) {
 			continue;
 		}
 
@@ -1337,7 +1337,7 @@
  * @return string Space-separated string of class names.
  */
 function postbox_classes( $box_id, $screen_id ) {
-	if ( isset( $_GET['edit'] ) && $_GET['edit'] == $box_id ) {
+	if ( isset( $_GET['edit'] ) && $_GET['edit'] === $box_id ) {
 		$classes = array( '' );
 	} elseif ( get_user_option( 'closedpostboxes_' . $screen_id ) ) {
 		$closed = get_user_option( 'closedpostboxes_' . $screen_id );
@@ -1504,7 +1504,7 @@
 
 		// Encourage a pretty permalink setting.
 		if ( ! get_option( 'permalink_structure' ) && current_user_can( 'manage_options' )
-			&& ! ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_on_front' ) == $id )
+			&& ! ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_on_front' ) === $id )
 		) {
 			$return .= '<span id="change-permalinks"><a href="options-permalink.php" class="button button-small" target="_blank">' . __( 'Change Permalinks' ) . "</a></span>\n";
 		}
@@ -1647,7 +1647,7 @@
 	/** 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 && get_current_user_id() != $user ) {
+	if ( $time && $time > time() - $time_window && get_current_user_id() !== $user ) {
 		return $user;
 	}
 
@@ -1745,7 +1745,7 @@
 	if ( $locked ) {
 		$query_args = array();
 		if ( get_post_type_object( $post->post_type )->public ) {
-			if ( 'publish' === $post->post_status || $user->ID != $post->post_author ) {
+			if ( 'publish' === $post->post_status || $user->ID !== $post->post_author ) {
 				// Latest content is in autosave.
 				$nonce                       = wp_create_nonce( 'post_preview_' . $post->ID );
 				$query_args['preview_id']    = $post->ID;
@@ -1934,7 +1934,7 @@
 
 	$is_autosave = false;
 
-	if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author
+	if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() === $post->post_author
 		&& ( 'draft' === $post->post_status || 'auto-draft' === $post->post_status )
 	) {
 		$saved_post_id = edit_post();
@@ -2009,7 +2009,7 @@
 		$post_data['post_category'] = explode( ',', $post_data['catslist'] );
 	}
 
-	if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author
+	if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() === $post->post_author
 		&& ( 'auto-draft' === $post->post_status || 'draft' === $post->post_status )
 	) {
 		// Drafts and auto-drafts are just overwritten by autosave for the same user if the post is not locked.
@@ -2319,7 +2319,7 @@
 
 			$meta_boxes = (array) $wp_meta_boxes[ $current_screen->id ][ $location ][ $priority ];
 			foreach ( $meta_boxes as $meta_box ) {
-				if ( false == $meta_box || ! $meta_box['title'] ) {
+				if ( false === $meta_box || ! $meta_box['title'] ) {
 					continue;
 				}
 
Index: src/wp-admin/includes/schema.php
===================================================================
--- src/wp-admin/includes/schema.php	(revision 53020)
+++ src/wp-admin/includes/schema.php	(working copy)
@@ -38,7 +38,7 @@
 
 	$charset_collate = $wpdb->get_charset_collate();
 
-	if ( $blog_id && $blog_id != $wpdb->blogid ) {
+	if ( $blog_id && $blog_id !== $wpdb->blogid ) {
 		$old_blog_id = $wpdb->set_blog_id( $blog_id );
 	}
 
@@ -991,7 +991,7 @@
 			$errors->add( 'siteid_exists', __( 'The network already exists.' ) );
 		}
 	} else {
-		if ( $network_id == $wpdb->get_var( $wpdb->prepare( "SELECT id FROM $wpdb->site WHERE id = %d", $network_id ) ) ) {
+		if ( $network_id === $wpdb->get_var( $wpdb->prepare( "SELECT id FROM $wpdb->site WHERE id = %d", $network_id ) ) ) {
 			$errors->add( 'siteid_exists', __( 'The network already exists.' ) );
 		}
 	}
@@ -1004,7 +1004,7 @@
 		return $errors;
 	}
 
-	if ( 1 == $network_id ) {
+	if ( 1 === $network_id ) {
 		$wpdb->insert(
 			$wpdb->site,
 			array(
@@ -1085,7 +1085,7 @@
 		);
 		if ( is_wp_error( $page ) ) {
 			$errstr = $page->get_error_message();
-		} elseif ( 200 == wp_remote_retrieve_response_code( $page ) ) {
+		} elseif ( 200 === wp_remote_retrieve_response_code( $page ) ) {
 				$vhost_ok = true;
 		}
 
@@ -1151,11 +1151,11 @@
 	$stylesheet     = get_option( 'stylesheet' );
 	$allowed_themes = array( $stylesheet => true );
 
-	if ( $template != $stylesheet ) {
+	if ( $template !== $stylesheet ) {
 		$allowed_themes[ $template ] = true;
 	}
 
-	if ( WP_DEFAULT_THEME != $stylesheet && WP_DEFAULT_THEME != $template ) {
+	if ( WP_DEFAULT_THEME !== $stylesheet && WP_DEFAULT_THEME !== $template ) {
 		$allowed_themes[ WP_DEFAULT_THEME ] = true;
 	}
 
Index: src/wp-admin/includes/taxonomy.php
===================================================================
--- src/wp-admin/includes/taxonomy.php	(revision 53020)
+++ src/wp-admin/includes/taxonomy.php	(working copy)
@@ -188,7 +188,7 @@
 function wp_update_category( $catarr ) {
 	$cat_ID = (int) $catarr['cat_ID'];
 
-	if ( isset( $catarr['category_parent'] ) && ( $cat_ID == $catarr['category_parent'] ) ) {
+	if ( isset( $catarr['category_parent'] ) && ( $cat_ID === $catarr['category_parent'] ) ) {
 		return false;
 	}
 
Index: src/wp-admin/includes/update.php
===================================================================
--- src/wp-admin/includes/update.php	(revision 53020)
+++ src/wp-admin/includes/update.php	(working copy)
@@ -145,7 +145,7 @@
 		$response = wp_remote_get( $http_url, $options );
 	}
 
-	if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) ) {
+	if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) {
 		return false;
 	}
 
@@ -212,7 +212,7 @@
 
 	$updates = $from_api->updates;
 	foreach ( $updates as $update ) {
-		if ( $update->current == $version && $update->locale == $locale ) {
+		if ( $update->current === $version && $update->locale === $locale ) {
 			return $update;
 		}
 	}
Index: src/wp-admin/includes/upgrade.php
===================================================================
--- src/wp-admin/includes/upgrade.php	(revision 53020)
+++ src/wp-admin/includes/upgrade.php	(working copy)
@@ -161,7 +161,7 @@
 
 		if ( global_terms_enabled() ) {
 			$cat_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM {$wpdb->sitecategories} WHERE category_nicename = %s", $cat_slug ) );
-			if ( null == $cat_id ) {
+			if ( null === $cat_id ) {
 				$wpdb->insert(
 					$wpdb->sitecategories,
 					array(
@@ -459,7 +459,7 @@
 
 			// Delete any caps that snuck into the previously active blog. (Hardcoded to blog 1 for now.)
 			// TODO: Get previous_blog_id.
-			if ( ! is_super_admin( $user_id ) && 1 != $user_id ) {
+			if ( ! is_super_admin( $user_id ) && 1 !== $user_id ) {
 				$wpdb->delete(
 					$wpdb->usermeta,
 					array(
@@ -648,7 +648,7 @@
 		$wp_current_db_version = __get_option( 'db_version' );
 
 		// We are up to date. Nothing to do.
-		if ( $wp_db_version == $wp_current_db_version ) {
+		if ( $wp_db_version === $wp_current_db_version ) {
 			return;
 		}
 
@@ -701,7 +701,7 @@
 	$wp_current_db_version = __get_option( 'db_version' );
 
 	// We are up to date. Nothing to do.
-	if ( $wp_db_version == $wp_current_db_version ) {
+	if ( $wp_db_version === $wp_current_db_version ) {
 		return;
 	}
 
@@ -909,7 +909,7 @@
 		foreach ( $allposts as $post ) {
 			// Check to see if it's already been imported.
 			$cat = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->post2cat WHERE post_id = %d AND category_id = %d", $post->ID, $post->post_category ) );
-			if ( ! $cat && 0 != $post->post_category ) { // If there's no result.
+			if ( ! $cat && 0 !== $post->post_category ) { // If there's no result.
 				$wpdb->insert(
 					$wpdb->post2cat,
 					array(
@@ -1083,7 +1083,7 @@
 	// Some versions have multiple duplicate option_name rows with the same values.
 	$options = $wpdb->get_results( "SELECT option_name, COUNT(option_name) AS dupes FROM `$wpdb->options` GROUP BY option_name" );
 	foreach ( $options as $option ) {
-		if ( 1 != $option->dupes ) { // Could this be done in the query?
+		if ( 1 !== $option->dupes ) { // Could this be done in the query?
 			$limit    = $option->dupes - 1;
 			$dupe_ids = $wpdb->get_col( $wpdb->prepare( "SELECT option_id FROM $wpdb->options WHERE option_name = %s LIMIT %d", $option->option_name, $limit ) );
 			if ( $dupe_ids ) {
@@ -1433,7 +1433,7 @@
 		$links = $wpdb->get_results( "SELECT link_id, link_category FROM $wpdb->links" );
 		if ( ! empty( $links ) ) {
 			foreach ( $links as $link ) {
-				if ( 0 == $link->link_category ) {
+				if ( 0 === $link->link_category ) {
 					continue;
 				}
 				if ( ! isset( $link_cat_id_map[ $link->link_category ] ) ) {
@@ -1657,7 +1657,7 @@
 	if ( $wp_current_db_version < 11958 ) {
 		// Previously, setting depth to 1 would redundantly disable threading,
 		// but now 2 is the minimum depth to avoid confusion.
-		if ( get_option( 'thread_comments_depth' ) == '1' ) {
+		if ( get_option( 'thread_comments_depth' ) === '1' ) {
 			update_option( 'thread_comments_depth', 2 );
 			update_option( 'thread_comments', 0 );
 		}
@@ -1765,11 +1765,11 @@
 						$found = false;
 
 						foreach ( $wp_registered_widgets as $widget_id => $widget ) {
-							if ( strtolower( $widget['name'] ) == strtolower( $name ) ) {
+							if ( strtolower( $widget['name'] ) === strtolower( $name ) ) {
 								$_sidebars_widgets[ $index ][ $i ] = $widget['id'];
 								$found                             = true;
 								break;
-							} elseif ( sanitize_title( $widget['name'] ) == sanitize_title( $name ) ) {
+							} elseif ( sanitize_title( $widget['name'] ) === sanitize_title( $name ) ) {
 								$_sidebars_widgets[ $index ][ $i ] = $widget['id'];
 								$found                             = true;
 								break;
@@ -2423,7 +2423,7 @@
 			$upgrade = false;
 			$indexes = $wpdb->get_results( "SHOW INDEXES FROM $wpdb->signups" );
 			foreach ( $indexes as $index ) {
-				if ( 'domain_path' === $index->Key_name && 'domain' === $index->Column_name && 140 != $index->Sub_part ) {
+				if ( 'domain_path' === $index->Key_name && 'domain' === $index->Column_name && 140 !== $index->Sub_part ) {
 					$upgrade = true;
 					break;
 				}
@@ -2955,7 +2955,7 @@
 				$fieldtype_lowercased = strtolower( $fieldtype );
 
 				// Is actual field type different from the field type in query?
-				if ( $tablefield->Type != $fieldtype ) {
+				if ( $tablefield->Type !== $fieldtype ) {
 					$do_change = true;
 					if ( in_array( $fieldtype_lowercased, $text_fields, true ) && in_array( $tablefield_type_lowercased, $text_fields, true ) ) {
 						if ( array_search( $fieldtype_lowercased, $text_fields, true ) < array_search( $tablefield_type_lowercased, $text_fields, true ) ) {
@@ -2980,7 +2980,7 @@
 				// Get the default value from the array.
 				if ( preg_match( "| DEFAULT '(.*?)'|i", $cfields[ $tablefield_field_lowercased ], $matches ) ) {
 					$default_value = $matches[1];
-					if ( $tablefield->Default != $default_value ) {
+					if ( $tablefield->Default !== $default_value ) {
 						// Add a query to change the column's default value
 						$cqueries[] = "ALTER TABLE {$table} ALTER COLUMN `{$tablefield->Field}` SET DEFAULT '{$default_value}'";
 
@@ -3019,7 +3019,7 @@
 					'fieldname' => $tableindex->Column_name,
 					'subpart'   => $tableindex->Sub_part,
 				);
-				$index_ary[ $keyname ]['unique']     = ( 0 == $tableindex->Non_unique ) ? true : false;
+				$index_ary[ $keyname ]['unique']     = ( 0 === $tableindex->Non_unique ) ? true : false;
 				$index_ary[ $keyname ]['index_type'] = $tableindex->Index_type;
 			}
 
@@ -3341,7 +3341,7 @@
 
 	// Make the new site theme active.
 	$current_template = __get_option( 'template' );
-	if ( WP_DEFAULT_THEME == $current_template ) {
+	if ( WP_DEFAULT_THEME === $current_template ) {
 		update_option( 'template', $template );
 		update_option( 'stylesheet', $template );
 	}
Index: src/wp-admin/includes/user.php
===================================================================
--- src/wp-admin/includes/user.php	(revision 53020)
+++ src/wp-admin/includes/user.php	(working copy)
@@ -173,7 +173,7 @@
 	}
 
 	// Checking the password has been typed twice the same.
-	if ( ( $update || ! empty( $pass1 ) ) && $pass1 != $pass2 ) {
+	if ( ( $update || ! empty( $pass1 ) ) && $pass1 !== $pass2 ) {
 		$errors->add( 'pass', __( '<strong>Error</strong>: Passwords do not match. Please enter the same password in both password fields.' ), array( 'form-field' => 'pass1' ) );
 	}
 
@@ -203,7 +203,7 @@
 		$errors->add( 'invalid_email', __( '<strong>Error</strong>: The email address is not correct.' ), array( 'form-field' => 'email' ) );
 	} else {
 		$owner_id = email_exists( $user->user_email );
-		if ( $owner_id && ( ! $update || ( $owner_id != $user->ID ) ) ) {
+		if ( $owner_id && ( ! $update || ( $owner_id !== $user->ID ) ) ) {
 			$errors->add( 'email_exists', __( '<strong>Error</strong>: This email is already registered. Please choose another one.' ), array( 'form-field' => 'email' ) );
 		}
 	}
@@ -479,7 +479,7 @@
 
 	// get_user_setting() = JS-saved UI setting. Else no-js-fallback code.
 	if ( 'hide' === get_user_setting( 'default_password_nag' )
-		|| isset( $_GET['default_password_nag'] ) && '0' == $_GET['default_password_nag']
+		|| isset( $_GET['default_password_nag'] ) && '0' === $_GET['default_password_nag']
 	) {
 		delete_user_setting( 'default_password_nag' );
 		update_user_meta( $user_ID, 'default_password_nag', false );
@@ -501,7 +501,7 @@
 	$new_data = get_userdata( $user_ID );
 
 	// Remove the nag if the password has been changed.
-	if ( $new_data->user_pass != $old_data->user_pass ) {
+	if ( $new_data->user_pass !== $old_data->user_pass ) {
 		delete_user_setting( 'default_password_nag' );
 		update_user_meta( $user_ID, 'default_password_nag', false );
 	}
Index: src/wp-admin/maint/repair.php
===================================================================
--- src/wp-admin/maint/repair.php	(revision 53020)
+++ src/wp-admin/maint/repair.php	(working copy)
@@ -70,7 +70,7 @@
 
 	echo '<h1 class="screen-reader-text">' . __( 'Database repair results' ) . '</h1>';
 
-	$optimize = 2 == $_GET['repair'];
+	$optimize = 2 === $_GET['repair'];
 	$okay     = true;
 	$problems = array();
 
Index: src/wp-admin/network/sites.php
===================================================================
--- src/wp-admin/network/sites.php	(revision 53020)
+++ src/wp-admin/network/sites.php	(working copy)
@@ -102,7 +102,7 @@
 			header( 'Content-Type: text/html; charset=utf-8' );
 		}
 
-		if ( get_network()->site_id == $id ) {
+		if ( get_network()->site_id === $id ) {
 			wp_die( __( 'Sorry, you are not allowed to change the current site.' ) );
 		}
 
@@ -142,7 +142,7 @@
 			}
 
 			$updated_action = 'not_deleted';
-			if ( '0' != $id && get_network()->site_id != $id && current_user_can( 'delete_site', $id ) ) {
+			if ( '0' !== $id && get_network()->site_id !== $id && current_user_can( 'delete_site', $id ) ) {
 				wpmu_delete_blog( $id, true );
 				$updated_action = 'delete';
 			}
@@ -154,7 +154,7 @@
 			foreach ( (array) $_POST['site_ids'] as $site_id ) {
 				$site_id = (int) $site_id;
 
-				if ( get_network()->site_id == $site_id ) {
+				if ( get_network()->site_id === $site_id ) {
 					continue;
 				}
 
@@ -182,7 +182,7 @@
 				$doaction = $_POST['action'];
 
 				foreach ( (array) $_POST['allblogs'] as $key => $val ) {
-					if ( '0' != $val && get_network()->site_id != $val ) {
+					if ( '0' !== $val && get_network()->site_id !== $val ) {
 						switch ( $doaction ) {
 							case 'delete':
 								require_once ABSPATH . 'wp-admin/admin-header.php';
Index: src/wp-admin/network/users.php
===================================================================
--- src/wp-admin/network/users.php	(revision 53020)
+++ src/wp-admin/network/users.php	(working copy)
@@ -94,7 +94,7 @@
 								$blogs        = get_blogs_of_user( $user_id, true );
 
 								foreach ( (array) $blogs as $details ) {
-									if ( get_network()->site_id != $details->userblog_id ) { // Main blog is not a spam!
+									if ( get_network()->site_id !== $details->userblog_id ) { // Main blog is not a spam!
 										update_blog_status( $details->userblog_id, 'spam', '1' );
 									}
 								}
@@ -253,7 +253,7 @@
 
 require_once ABSPATH . 'wp-admin/admin-header.php';
 
-if ( isset( $_REQUEST['updated'] ) && 'true' == $_REQUEST['updated'] && ! empty( $_REQUEST['action'] ) ) {
+if ( isset( $_REQUEST['updated'] ) && 'true' === $_REQUEST['updated'] && ! empty( $_REQUEST['action'] ) ) {
 	?>
 	<div id="message" class="updated notice is-dismissible"><p>
 		<?php
Index: src/wp-admin/options-general.php
===================================================================
--- src/wp-admin/options-general.php	(revision 53020)
+++ src/wp-admin/options-general.php	(working copy)
@@ -212,7 +212,7 @@
 
 if ( empty( $tzstring ) ) { // Create a UTC+- zone if no timezone string exists.
 	$check_zone_info = false;
-	if ( 0 == $current_offset ) {
+	if ( 0 === $current_offset ) {
 		$tzstring = 'UTC+0';
 	} elseif ( $current_offset < 0 ) {
 		$tzstring = 'UTC' . $current_offset;
@@ -390,7 +390,7 @@
 global $wp_locale;
 
 for ( $day_index = 0; $day_index <= 6; $day_index++ ) :
-	$selected = ( get_option( 'start_of_week' ) == $day_index ) ? 'selected="selected"' : '';
+	$selected = ( get_option( 'start_of_week' ) === $day_index ) ? 'selected="selected"' : '';
 	echo "\n\t<option value='" . esc_attr( $day_index ) . "' $selected>" . $wp_locale->get_weekday( $day_index ) . '</option>';
 endfor;
 ?>
Index: src/wp-admin/options-writing.php
===================================================================
--- src/wp-admin/options-writing.php	(revision 53020)
+++ src/wp-admin/options-writing.php	(working copy)
@@ -201,7 +201,7 @@
 	?>
 <h2 class="title"><?php _e( 'Update Services' ); ?></h2>
 
-	<?php if ( 1 == get_option( 'blog_public' ) ) : ?>
+	<?php if ( 1 === get_option( 'blog_public' ) ) : ?>
 
 	<p><label for="ping_sites">
 		<?php
Index: src/wp-admin/update-core.php
===================================================================
--- src/wp-admin/update-core.php	(revision 53020)
+++ src/wp-admin/update-core.php	(working copy)
@@ -42,7 +42,7 @@
 
 	if ( 'en_US' === $update->locale && 'en_US' === get_locale() ) {
 		$version_string = $update->current;
-	} elseif ( 'en_US' === $update->locale && $update->packages->partial && $wp_version == $update->partial_version ) {
+	} elseif ( 'en_US' === $update->locale && $update->packages->partial && $wp_version === $update->partial_version ) {
 		$updates = get_core_updates();
 		if ( $updates && 1 === count( $updates ) ) {
 			// If the only available update is a partial builds, it doesn't need a language-specific version string.
@@ -179,9 +179,9 @@
 	}
 	echo '</p>';
 
-	if ( 'en_US' !== $update->locale && ( ! isset( $wp_local_package ) || $wp_local_package != $update->locale ) ) {
+	if ( 'en_US' !== $update->locale && ( ! isset( $wp_local_package ) || $wp_local_package !== $update->locale ) ) {
 		echo '<p class="hint">' . __( 'This localized version contains both the translation and various other localization fixes.' ) . '</p>';
-	} elseif ( 'en_US' === $update->locale && 'en_US' !== get_locale() && ( ! $update->packages->partial && $wp_version == $update->partial_version ) ) {
+	} elseif ( 'en_US' === $update->locale && 'en_US' !== get_locale() && ( ! $update->packages->partial && $wp_version === $update->partial_version ) ) {
 		// Partial builds don't need language-specific warnings.
 		echo '<p class="hint">' . sprintf(
 			/* translators: %s: WordPress version. */
@@ -890,7 +890,7 @@
 
 	if ( is_wp_error( $result ) ) {
 		show_message( $result );
-		if ( 'up_to_date' != $result->get_error_code() && 'locked' != $result->get_error_code() ) {
+		if ( 'up_to_date' !== $result->get_error_code() && 'locked' !== $result->get_error_code() ) {
 			show_message( __( 'Installation failed.' ) );
 		}
 		echo '</div>';
Index: src/wp-admin/user-new.php
===================================================================
--- src/wp-admin/user-new.php	(revision 53020)
+++ src/wp-admin/user-new.php	(working copy)
@@ -63,7 +63,7 @@
 	$redirect       = 'user-new.php';
 	$username       = $user_details->user_login;
 	$user_id        = $user_details->ID;
-	if ( null != $username && array_key_exists( $blog_id, get_blogs_of_user( $user_id ) ) ) {
+	if ( null !== $username && array_key_exists( $blog_id, get_blogs_of_user( $user_id ) ) ) {
 		$redirect = add_query_arg( array( 'update' => 'addexisting' ), 'user-new.php' );
 	} else {
 		if ( isset( $_POST['noconfirmation'] ) && current_user_can( 'manage_network_users' ) ) {
Index: src/wp-admin/users.php
===================================================================
--- src/wp-admin/users.php	(revision 53020)
+++ src/wp-admin/users.php	(working copy)
@@ -139,7 +139,7 @@
 			}
 
 			// The new role of the current user must also have the promote_users cap or be a multisite super admin.
-			if ( $id == $current_user->ID && ! $wp_roles->role_objects[ $role ]->has_cap( 'promote_users' )
+			if ( $id === $current_user->ID && ! $wp_roles->role_objects[ $role ]->has_cap( 'promote_users' )
 			&& ! ( is_multisite() && current_user_can( 'manage_network_users' ) ) ) {
 					$update = 'err_admin_role';
 					continue;
@@ -194,7 +194,7 @@
 				wp_die( __( 'Sorry, you are not allowed to delete that user.' ), 403 );
 			}
 
-			if ( $id == $current_user->ID ) {
+			if ( $id === $current_user->ID ) {
 				$update = 'err_admin_del';
 				continue;
 			}
@@ -335,7 +335,7 @@
 		$go_delete = 0;
 		foreach ( $all_userids as $id ) {
 			$user = get_userdata( $id );
-			if ( $id == $current_user->ID ) {
+			if ( $id === $current_user->ID ) {
 				/* translators: 1: User ID, 2: User login. */
 				echo '<li>' . sprintf( __( 'ID #%1$s: %2$s <strong>The current user will not be deleted.</strong>' ), $id, $user->user_login ) . "</li>\n";
 			} else {
@@ -353,7 +353,7 @@
 				?>
 			<input type="hidden" name="delete_option" value="delete" />
 			<?php else : ?>
-				<?php if ( 1 == $go_delete ) : ?>
+				<?php if ( 1 === $go_delete ) : ?>
 			<fieldset><p><legend><?php _e( 'What should be done with content owned by this user?' ); ?></legend></p>
 		<?php else : ?>
 			<fieldset><p><legend><?php _e( 'What should be done with content owned by these users?' ); ?></legend></p>
@@ -529,7 +529,7 @@
 				case 'del':
 				case 'del_many':
 					$delete_count = isset( $_GET['delete_count'] ) ? (int) $_GET['delete_count'] : 0;
-					if ( 1 == $delete_count ) {
+					if ( 1 === $delete_count ) {
 						$message = __( 'User deleted.' );
 					} else {
 						/* translators: %s: Number of users. */