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Ticket #40508: general-template.php

File general-template.php, 122.2 KB (added by rajanit2000, 9 years ago)
updated general-template.php

Line
1	<?php
2	/**
3	* General template tags that can go anywhere in a template.
4	*
5	* @package WordPress
6	* @subpackage Template
7	*/
8
9	/**
10	* Load header template.
11	*
12	* Includes the header template for a theme or if a name is specified then a
13	* specialised header will be included.
14	*
15	* For the parameter, if the file is called "header-special.php" then specify
16	* "special".
17	*
18	* @since 1.5.0
19	*
20	* @param string $name The name of the specialised header.
21	*/
22	function get_header( $name = null ) {
23	/**
24	* Fires before the header template file is loaded.
25	*
26	* The hook allows a specific header template file to be used in place of the
27	* default header template file. If your file is called header-new.php,
28	* you would specify the filename in the hook as get_header( 'new' ).
29	*
30	* @since 2.1.0
31	* @since 2.8.0 $name parameter added.
32	*
33	* @param string\|null $name Name of the specific header file to use. null for the default header.
34	*/
35	do_action( 'get_header', $name );
36
37	$templates = array();
38	$name = (string) $name;
39	if ( '' !== $name ) {
40	$templates[] = "header-{$name}.php";
41	}
42
43	$templates[] = 'header.php';
44
45	locate_template( $templates, true );
46
47	do_action( 'get_header_after', $name );
48
49	}
50
51	/**
52	* Load footer template.
53	*
54	* Includes the footer template for a theme or if a name is specified then a
55	* specialised footer will be included.
56	*
57	* For the parameter, if the file is called "footer-special.php" then specify
58	* "special".
59	*
60	* @since 1.5.0
61	*
62	* @param string $name The name of the specialised footer.
63	*/
64	function get_footer( $name = null ) {
65	/**
66	* Fires before the footer template file is loaded.
67	*
68	* The hook allows a specific footer template file to be used in place of the
69	* default footer template file. If your file is called footer-new.php,
70	* you would specify the filename in the hook as get_footer( 'new' ).
71	*
72	* @since 2.1.0
73	* @since 2.8.0 $name parameter added.
74	*
75	* @param string\|null $name Name of the specific footer file to use. null for the default footer.
76	*/
77	do_action( 'get_footer', $name );
78
79	$templates = array();
80	$name = (string) $name;
81	if ( '' !== $name ) {
82	$templates[] = "footer-{$name}.php";
83	}
84
85	$templates[] = 'footer.php';
86
87	locate_template( $templates, true );
88
89	do_action( 'get_footer_after', $name );
90	}
91
92	/**
93	* Load sidebar template.
94	*
95	* Includes the sidebar template for a theme or if a name is specified then a
96	* specialised sidebar will be included.
97	*
98	* For the parameter, if the file is called "sidebar-special.php" then specify
99	* "special".
100	*
101	* @since 1.5.0
102	*
103	* @param string $name The name of the specialised sidebar.
104	*/
105	function get_sidebar( $name = null ) {
106	/**
107	* Fires before the sidebar template file is loaded.
108	*
109	* The hook allows a specific sidebar template file to be used in place of the
110	* default sidebar template file. If your file is called sidebar-new.php,
111	* you would specify the filename in the hook as get_sidebar( 'new' ).
112	*
113	* @since 2.2.0
114	* @since 2.8.0 $name parameter added.
115	*
116	* @param string\|null $name Name of the specific sidebar file to use. null for the default sidebar.
117	*/
118	do_action( 'get_sidebar', $name );
119
120	$templates = array();
121	$name = (string) $name;
122	if ( '' !== $name )
123	$templates[] = "sidebar-{$name}.php";
124
125	$templates[] = 'sidebar.php';
126
127	locate_template( $templates, true );
128
129	do_action( 'get_sidebar_after', $name );
130	}
131
132	/**
133	* Load a template part into a template
134	*
135	* Makes it easy for a theme to reuse sections of code in a easy to overload way
136	* for child themes.
137	*
138	* Includes the named template part for a theme or if a name is specified then a
139	* specialised part will be included. If the theme contains no {slug}.php file
140	* then no template will be included.
141	*
142	* The template is included using require, not require_once, so you may include the
143	* same template part multiple times.
144	*
145	* For the $name parameter, if the file is called "{slug}-special.php" then specify
146	* "special".
147	*
148	* @since 3.0.0
149	*
150	* @param string $slug The slug name for the generic template.
151	* @param string $name The name of the specialised template.
152	*/
153	function get_template_part( $slug, $name = null ) {
154	/**
155	* Fires before the specified template part file is loaded.
156	*
157	* The dynamic portion of the hook name, `$slug`, refers to the slug name
158	* for the generic template part.
159	*
160	* @since 3.0.0
161	*
162	* @param string $slug The slug name for the generic template.
163	* @param string\|null $name The name of the specialized template.
164	*/
165	do_action( "get_template_part_{$slug}", $slug, $name );
166
167	$templates = array();
168	$name = (string) $name;
169	if ( '' !== $name )
170	$templates[] = "{$slug}-{$name}.php";
171
172	$templates[] = "{$slug}.php";
173
174	locate_template($templates, true, false);
175
176	do_action( "get_template_part_{$slug}_after", $slug, $name );
177	}
178
179	/**
180	* Display search form.
181	*
182	* Will first attempt to locate the searchform.php file in either the child or
183	* the parent, then load it. If it doesn't exist, then the default search form
184	* will be displayed. The default search form is HTML, which will be displayed.
185	* There is a filter applied to the search form HTML in order to edit or replace
186	* it. The filter is {@see 'get_search_form'}.
187	*
188	* This function is primarily used by themes which want to hardcode the search
189	* form into the sidebar and also by the search widget in WordPress.
190	*
191	* There is also an action that is called whenever the function is run called,
192	* {@see 'pre_get_search_form'}. This can be useful for outputting JavaScript that the
193	* search relies on or various formatting that applies to the beginning of the
194	* search. To give a few examples of what it can be used for.
195	*
196	* @since 2.7.0
197	*
198	* @param bool $echo Default to echo and not return the form.
199	* @return string\|void String when $echo is false.
200	*/
201	function get_search_form( $echo = true ) {
202	/**
203	* Fires before the search form is retrieved, at the start of get_search_form().
204	*
205	* @since 2.7.0 as 'get_search_form' action.
206	* @since 3.6.0
207	*
208	* @link https://core.trac.wordpress.org/ticket/19321
209	*/
210	do_action( 'pre_get_search_form' );
211
212	$format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml';
213
214	/**
215	* Filters the HTML format of the search form.
216	*
217	* @since 3.6.0
218	*
219	* @param string $format The type of markup to use in the search form.
220	* Accepts 'html5', 'xhtml'.
221	*/
222	$format = apply_filters( 'search_form_format', $format );
223
224	$search_form_template = locate_template( 'searchform.php' );
225	if ( '' != $search_form_template ) {
226	ob_start();
227	require( $search_form_template );
228	$form = ob_get_clean();
229	} else {
230	if ( 'html5' == $format ) {
231	$form = '<form role="search" method="get" class="search-form" action="' . esc_url( home_url( '/' ) ) . '">
232	<label>
233	<span class="screen-reader-text">' . _x( 'Search for:', 'label' ) . '</span>
234	<input type="search" class="search-field" placeholder="' . esc_attr_x( 'Search …', 'placeholder' ) . '" value="' . get_search_query() . '" name="s" />
235	</label>
236	<input type="submit" class="search-submit" value="'. esc_attr_x( 'Search', 'submit button' ) .'" />
237	</form>';
238	} else {
239	$form = '<form role="search" method="get" id="searchform" class="searchform" action="' . esc_url( home_url( '/' ) ) . '">
240	<div>
241	<label class="screen-reader-text" for="s">' . _x( 'Search for:', 'label' ) . '</label>
242	<input type="text" value="' . get_search_query() . '" name="s" id="s" />
243	<input type="submit" id="searchsubmit" value="'. esc_attr_x( 'Search', 'submit button' ) .'" />
244	</div>
245	</form>';
246	}
247	}
248
249	/**
250	* Filters the HTML output of the search form.
251	*
252	* @since 2.7.0
253	*
254	* @param string $form The search form HTML output.
255	*/
256	$result = apply_filters( 'get_search_form', $form );
257
258	if ( null === $result )
259	$result = $form;
260
261	if ( $echo )
262	echo $result;
263	else
264	return $result;
265	}
266
267	/**
268	* Display the Log In/Out link.
269	*
270	* Displays a link, which allows users to navigate to the Log In page to log in
271	* or log out depending on whether they are currently logged in.
272	*
273	* @since 1.5.0
274	*
275	* @param string $redirect Optional path to redirect to on login/logout.
276	* @param bool $echo Default to echo and not return the link.
277	* @return string\|void String when retrieving.
278	*/
279	function wp_loginout($redirect = '', $echo = true) {
280	if ( ! is_user_logged_in() )
281	$link = '<a href="' . esc_url( wp_login_url($redirect) ) . '">' . __('Log in') . '</a>';
282	else
283	$link = '<a href="' . esc_url( wp_logout_url($redirect) ) . '">' . __('Log out') . '</a>';
284
285	if ( $echo ) {
286	/**
287	* Filters the HTML output for the Log In/Log Out link.
288	*
289	* @since 1.5.0
290	*
291	* @param string $link The HTML link content.
292	*/
293	echo apply_filters( 'loginout', $link );
294	} else {
295	/** This filter is documented in wp-includes/general-template.php */
296	return apply_filters( 'loginout', $link );
297	}
298	}
299
300	/**
301	* Retrieves the logout URL.
302	*
303	* Returns the URL that allows the user to log out of the site.
304	*
305	* @since 2.7.0
306	*
307	* @param string $redirect Path to redirect to on logout.
308	* @return string The logout URL. Note: HTML-encoded via esc_html() in wp_nonce_url().
309	*/
310	function wp_logout_url($redirect = '') {
311	$args = array( 'action' => 'logout' );
312	if ( !empty($redirect) ) {
313	$args['redirect_to'] = urlencode( $redirect );
314	}
315
316	$logout_url = add_query_arg($args, site_url('wp-login.php', 'login'));
317	$logout_url = wp_nonce_url( $logout_url, 'log-out' );
318
319	/**
320	* Filters the logout URL.
321	*
322	* @since 2.8.0
323	*
324	* @param string $logout_url The HTML-encoded logout URL.
325	* @param string $redirect Path to redirect to on logout.
326	*/
327	return apply_filters( 'logout_url', $logout_url, $redirect );
328	}
329
330	/**
331	* Retrieves the login URL.
332	*
333	* @since 2.7.0
334	*
335	* @param string $redirect Path to redirect to on log in.
336	* @param bool $force_reauth Whether to force reauthorization, even if a cookie is present.
337	* Default false.
338	* @return string The login URL. Not HTML-encoded.
339	*/
340	function wp_login_url($redirect = '', $force_reauth = false) {
341	$login_url = site_url('wp-login.php', 'login');
342
343	if ( !empty($redirect) )
344	$login_url = add_query_arg('redirect_to', urlencode($redirect), $login_url);
345
346	if ( $force_reauth )
347	$login_url = add_query_arg('reauth', '1', $login_url);
348
349	/**
350	* Filters the login URL.
351	*
352	* @since 2.8.0
353	* @since 4.2.0 The `$force_reauth` parameter was added.
354	*
355	* @param string $login_url The login URL. Not HTML-encoded.
356	* @param string $redirect The path to redirect to on login, if supplied.
357	* @param bool $force_reauth Whether to force reauthorization, even if a cookie is present.
358	*/
359	return apply_filters( 'login_url', $login_url, $redirect, $force_reauth );
360	}
361
362	/**
363	* Returns the URL that allows the user to register on the site.
364	*
365	* @since 3.6.0
366	*
367	* @return string User registration URL.
368	*/
369	function wp_registration_url() {
370	/**
371	* Filters the user registration URL.
372	*
373	* @since 3.6.0
374	*
375	* @param string $register The user registration URL.
376	*/
377	return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) );
378	}
379
380	/**
381	* Provides a simple login form for use anywhere within WordPress.
382	*
383	* The login format HTML is echoed by default. Pass a false value for `$echo` to return it instead.
384	*
385	* @since 3.0.0
386	*
387	* @param array $args {
388	* Optional. Array of options to control the form output. Default empty array.
389	*
390	* @type bool $echo Whether to display the login form or return the form HTML code.
391	* Default true (echo).
392	* @type string $redirect URL to redirect to. Must be absolute, as in "https://example.com/mypage/".
393	* Default is to redirect back to the request URI.
394	* @type string $form_id ID attribute value for the form. Default 'loginform'.
395	* @type string $label_username Label for the username or email address field. Default 'Username or Email Address'.
396	* @type string $label_password Label for the password field. Default 'Password'.
397	* @type string $label_remember Label for the remember field. Default 'Remember Me'.
398	* @type string $label_log_in Label for the submit button. Default 'Log In'.
399	* @type string $id_username ID attribute value for the username field. Default 'user_login'.
400	* @type string $id_password ID attribute value for the password field. Default 'user_pass'.
401	* @type string $id_remember ID attribute value for the remember field. Default 'rememberme'.
402	* @type string $id_submit ID attribute value for the submit button. Default 'wp-submit'.
403	* @type bool $remember Whether to display the "rememberme" checkbox in the form.
404	* @type string $value_username Default value for the username field. Default empty.
405	* @type bool $value_remember Whether the "Remember Me" checkbox should be checked by default.
406	* Default false (unchecked).
407	*
408	* }
409	* @return string\|void String when retrieving.
410	*/
411	function wp_login_form( $args = array() ) {
412	$defaults = array(
413	'echo' => true,
414	// Default 'redirect' value takes the user back to the request URI.
415	'redirect' => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'],
416	'form_id' => 'loginform',
417	'label_username' => __( 'Username or Email Address' ),
418	'label_password' => __( 'Password' ),
419	'label_remember' => __( 'Remember Me' ),
420	'label_log_in' => __( 'Log In' ),
421	'id_username' => 'user_login',
422	'id_password' => 'user_pass',
423	'id_remember' => 'rememberme',
424	'id_submit' => 'wp-submit',
425	'remember' => true,
426	'value_username' => '',
427	// Set 'value_remember' to true to default the "Remember me" checkbox to checked.
428	'value_remember' => false,
429	);
430
431	/**
432	* Filters the default login form output arguments.
433	*
434	* @since 3.0.0
435	*
436	* @see wp_login_form()
437	*
438	* @param array $defaults An array of default login form arguments.
439	*/
440	$args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );
441
442	/**
443	* Filters content to display at the top of the login form.
444	*
445	* The filter evaluates just following the opening form tag element.
446	*
447	* @since 3.0.0
448	*
449	* @param string $content Content to display. Default empty.
450	* @param array $args Array of login form arguments.
451	*/
452	$login_form_top = apply_filters( 'login_form_top', '', $args );
453
454	/**
455	* Filters content to display in the middle of the login form.
456	*
457	* The filter evaluates just following the location where the 'login-password'
458	* field is displayed.
459	*
460	* @since 3.0.0
461	*
462	* @param string $content Content to display. Default empty.
463	* @param array $args Array of login form arguments.
464	*/
465	$login_form_middle = apply_filters( 'login_form_middle', '', $args );
466
467	/**
468	* Filters content to display at the bottom of the login form.
469	*
470	* The filter evaluates just preceding the closing form tag element.
471	*
472	* @since 3.0.0
473	*
474	* @param string $content Content to display. Default empty.
475	* @param array $args Array of login form arguments.
476	*/
477	$login_form_bottom = apply_filters( 'login_form_bottom', '', $args );
478
479	$form = '
480	<form name="' . $args['form_id'] . '" id="' . $args['form_id'] . '" action="' . esc_url( site_url( 'wp-login.php', 'login_post' ) ) . '" method="post">
481	' . $login_form_top . '
482	<p class="login-username">
483	<label for="' . esc_attr( $args['id_username'] ) . '">' . esc_html( $args['label_username'] ) . '</label>
484	<input type="text" name="log" id="' . esc_attr( $args['id_username'] ) . '" class="input" value="' . esc_attr( $args['value_username'] ) . '" size="20" />
485	</p>
486	<p class="login-password">
487	<label for="' . esc_attr( $args['id_password'] ) . '">' . esc_html( $args['label_password'] ) . '</label>
488	<input type="password" name="pwd" id="' . esc_attr( $args['id_password'] ) . '" class="input" value="" size="20" />
489	</p>
490	' . $login_form_middle . '
491	' . ( $args['remember'] ? '<p class="login-remember"><label><input name="rememberme" type="checkbox" id="' . esc_attr( $args['id_remember'] ) . '" value="forever"' . ( $args['value_remember'] ? ' checked="checked"' : '' ) . ' /> ' . esc_html( $args['label_remember'] ) . '</label></p>' : '' ) . '
492	<p class="login-submit">
493	<input type="submit" name="wp-submit" id="' . esc_attr( $args['id_submit'] ) . '" class="button button-primary" value="' . esc_attr( $args['label_log_in'] ) . '" />
494	<input type="hidden" name="redirect_to" value="' . esc_url( $args['redirect'] ) . '" />
495	</p>
496	' . $login_form_bottom . '
497	</form>';
498
499	if ( $args['echo'] )
500	echo $form;
501	else
502	return $form;
503	}
504
505	/**
506	* Returns the URL that allows the user to retrieve the lost password
507	*
508	* @since 2.8.0
509	*
510	* @param string $redirect Path to redirect to on login.
511	* @return string Lost password URL.
512	*/
513	function wp_lostpassword_url( $redirect = '' ) {
514	$args = array( 'action' => 'lostpassword' );
515	if ( !empty($redirect) ) {
516	$args['redirect_to'] = $redirect;
517	}
518
519	$lostpassword_url = add_query_arg( $args, network_site_url('wp-login.php', 'login') );
520
521	/**
522	* Filters the Lost Password URL.
523	*
524	* @since 2.8.0
525	*
526	* @param string $lostpassword_url The lost password page URL.
527	* @param string $redirect The path to redirect to on login.
528	*/
529	return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );
530	}
531
532	/**
533	* Display the Registration or Admin link.
534	*
535	* Display a link which allows the user to navigate to the registration page if
536	* not logged in and registration is enabled or to the dashboard if logged in.
537	*
538	* @since 1.5.0
539	*
540	* @param string $before Text to output before the link. Default `<li>`.
541	* @param string $after Text to output after the link. Default `</li>`.
542	* @param bool $echo Default to echo and not return the link.
543	* @return string\|void String when retrieving.
544	*/
545	function wp_register( $before = '<li>', $after = '</li>', $echo = true ) {
546	if ( ! is_user_logged_in() ) {
547	if ( get_option('users_can_register') )
548	$link = $before . '<a href="' . esc_url( wp_registration_url() ) . '">' . __('Register') . '</a>' . $after;
549	else
550	$link = '';
551	} elseif ( current_user_can( 'read' ) ) {
552	$link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;
553	} else {
554	$link = '';
555	}
556
557	/**
558	* Filters the HTML link to the Registration or Admin page.
559	*
560	* Users are sent to the admin page if logged-in, or the registration page
561	* if enabled and logged-out.
562	*
563	* @since 1.5.0
564	*
565	* @param string $link The HTML code for the link to the Registration or Admin page.
566	*/
567	$link = apply_filters( 'register', $link );
568
569	if ( $echo ) {
570	echo $link;
571	} else {
572	return $link;
573	}
574	}
575
576	/**
577	* Theme container function for the 'wp_meta' action.
578	*
579	* The {@see 'wp_meta'} action can have several purposes, depending on how you use it,
580	* but one purpose might have been to allow for theme switching.
581	*
582	* @since 1.5.0
583	*
584	* @link https://core.trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.
585	*/
586	function wp_meta() {
587	/**
588	* Fires before displaying echoed content in the sidebar.
589	*
590	* @since 1.5.0
591	*/
592	do_action( 'wp_meta' );
593	}
594
595	/**
596	* Displays information about the current site.
597	*
598	* @since 0.71
599	*
600	* @see get_bloginfo() For possible `$show` values
601	*
602	* @param string $show Optional. Site information to display. Default empty.
603	*/
604	function bloginfo( $show = '' ) {
605	echo get_bloginfo( $show, 'display' );
606	}
607
608	/**
609	* Retrieves information about the current site.
610	*
611	* Possible values for `$show` include:
612	*
613	* - 'name' - Site title (set in Settings > General)
614	* - 'description' - Site tagline (set in Settings > General)
615	* - 'wpurl' - The WordPress address (URL) (set in Settings > General)
616	* - 'url' - The Site address (URL) (set in Settings > General)
617	* - 'admin_email' - Admin email (set in Settings > General)
618	* - 'charset' - The "Encoding for pages and feeds" (set in Settings > Reading)
619	* - 'version' - The current WordPress version
620	* - 'html_type' - The content-type (default: "text/html"). Themes and plugins
621	* can override the default value using the {@see 'pre_option_html_type'} filter
622	* - 'text_direction' - The text direction determined by the site's language. is_rtl()
623	* should be used instead
624	* - 'language' - Language code for the current site
625	* - 'stylesheet_url' - URL to the stylesheet for the active theme. An active child theme
626	* will take precedence over this value
627	* - 'stylesheet_directory' - Directory path for the active theme. An active child theme
628	* will take precedence over this value
629	* - 'template_url' / 'template_directory' - URL of the active theme's directory. An active
630	* child theme will NOT take precedence over this value
631	* - 'pingback_url' - The pingback XML-RPC file URL (xmlrpc.php)
632	* - 'atom_url' - The Atom feed URL (/feed/atom)
633	* - 'rdf_url' - The RDF/RSS 1.0 feed URL (/feed/rfd)
634	* - 'rss_url' - The RSS 0.92 feed URL (/feed/rss)
635	* - 'rss2_url' - The RSS 2.0 feed URL (/feed)
636	* - 'comments_atom_url' - The comments Atom feed URL (/comments/feed)
637	* - 'comments_rss2_url' - The comments RSS 2.0 feed URL (/comments/feed)
638	*
639	* Some `$show` values are deprecated and will be removed in future versions.
640	* These options will trigger the _deprecated_argument() function.
641	*
642	* Deprecated arguments include:
643	*
644	* - 'siteurl' - Use 'url' instead
645	* - 'home' - Use 'url' instead
646	*
647	* @since 0.71
648	*
649	* @global string $wp_version
650	*
651	* @param string $show Optional. Site info to retrieve. Default empty (site name).
652	* @param string $filter Optional. How to filter what is retrieved. Default 'raw'.
653	* @return string Mostly string values, might be empty.
654	*/
655	function get_bloginfo( $show = '', $filter = 'raw' ) {
656	switch( $show ) {
657	case 'home' : // DEPRECATED
658	case 'siteurl' : // DEPRECATED
659	_deprecated_argument( __FUNCTION__, '2.2.0', sprintf(
660	/* translators: 1: 'siteurl'/'home' argument, 2: bloginfo() function name, 3: 'url' argument */
661	__( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s option instead.' ),
662	'<code>' . $show . '</code>',
663	'<code>bloginfo()</code>',
664	'<code>url</code>'
665	) );
666	case 'url' :
667	$output = home_url();
668	break;
669	case 'wpurl' :
670	$output = site_url();
671	break;
672	case 'description':
673	$output = get_option('blogdescription');
674	break;
675	case 'rdf_url':
676	$output = get_feed_link('rdf');
677	break;
678	case 'rss_url':
679	$output = get_feed_link('rss');
680	break;
681	case 'rss2_url':
682	$output = get_feed_link('rss2');
683	break;
684	case 'atom_url':
685	$output = get_feed_link('atom');
686	break;
687	case 'comments_atom_url':
688	$output = get_feed_link('comments_atom');
689	break;
690	case 'comments_rss2_url':
691	$output = get_feed_link('comments_rss2');
692	break;
693	case 'pingback_url':
694	$output = site_url( 'xmlrpc.php' );
695	break;
696	case 'stylesheet_url':
697	$output = get_stylesheet_uri();
698	break;
699	case 'stylesheet_directory':
700	$output = get_stylesheet_directory_uri();
701	break;
702	case 'template_directory':
703	case 'template_url':
704	$output = get_template_directory_uri();
705	break;
706	case 'admin_email':
707	$output = get_option('admin_email');
708	break;
709	case 'charset':
710	$output = get_option('blog_charset');
711	if ('' == $output) $output = 'UTF-8';
712	break;
713	case 'html_type' :
714	$output = get_option('html_type');
715	break;
716	case 'version':
717	global $wp_version;
718	$output = $wp_version;
719	break;
720	case 'language':
721	/* translators: Translate this to the correct language tag for your locale,
722	* see https://www.w3.org/International/articles/language-tags/ for reference.
723	* Do not translate into your own language.
724	*/
725	$output = __( 'html_lang_attribute' );
726	if ( 'html_lang_attribute' === $output \|\| preg_match( '/[^a-zA-Z0-9-]/', $output ) ) {
727	$output = get_locale();
728	$output = str_replace( '_', '-', $output );
729	}
730	break;
731	case 'text_direction':
732	_deprecated_argument( __FUNCTION__, '2.2.0', sprintf(
733	/* translators: 1: 'text_direction' argument, 2: bloginfo() function name, 3: is_rtl() function name */
734	__( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s function instead.' ),
735	'<code>' . $show . '</code>',
736	'<code>bloginfo()</code>',
737	'<code>is_rtl()</code>'
738	) );
739	if ( function_exists( 'is_rtl' ) ) {
740	$output = is_rtl() ? 'rtl' : 'ltr';
741	} else {
742	$output = 'ltr';
743	}
744	break;
745	case 'name':
746	default:
747	$output = get_option('blogname');
748	break;
749	}
750
751	$url = true;
752	if (strpos($show, 'url') === false &&
753	strpos($show, 'directory') === false &&
754	strpos($show, 'home') === false)
755	$url = false;
756
757	if ( 'display' == $filter ) {
758	if ( $url ) {
759	/**
760	* Filters the URL returned by get_bloginfo().
761	*
762	* @since 2.0.5
763	*
764	* @param mixed $output The URL returned by bloginfo().
765	* @param mixed $show Type of information requested.
766	*/
767	$output = apply_filters( 'bloginfo_url', $output, $show );
768	} else {
769	/**
770	* Filters the site information returned by get_bloginfo().
771	*
772	* @since 0.71
773	*
774	* @param mixed $output The requested non-URL site information.
775	* @param mixed $show Type of information requested.
776	*/
777	$output = apply_filters( 'bloginfo', $output, $show );
778	}
779	}
780
781	return $output;
782	}
783
784	/**
785	* Returns the Site Icon URL.
786	*
787	* @since 4.3.0
788	*
789	* @param int $size Optional. Size of the site icon. Default 512 (pixels).
790	* @param string $url Optional. Fallback url if no site icon is found. Default empty.
791	* @param int $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
792	* @return string Site Icon URL.
793	*/
794	function get_site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
795	$switched_blog = false;
796
797	if ( is_multisite() && ! empty( $blog_id ) && (int) $blog_id !== get_current_blog_id() ) {
798	switch_to_blog( $blog_id );
799	$switched_blog = true;
800	}
801
802	$site_icon_id = get_option( 'site_icon' );
803
804	if ( $site_icon_id ) {
805	if ( $size >= 512 ) {
806	$size_data = 'full';
807	} else {
808	$size_data = array( $size, $size );
809	}
810	$url = wp_get_attachment_image_url( $site_icon_id, $size_data );
811	}
812
813	if ( $switched_blog ) {
814	restore_current_blog();
815	}
816
817	/**
818	* Filters the site icon URL.
819	*
820	* @site 4.4.0
821	*
822	* @param string $url Site icon URL.
823	* @param int $size Size of the site icon.
824	* @param int $blog_id ID of the blog to get the site icon for.
825	*/
826	return apply_filters( 'get_site_icon_url', $url, $size, $blog_id );
827	}
828
829	/**
830	* Displays the Site Icon URL.
831	*
832	* @since 4.3.0
833	*
834	* @param int $size Optional. Size of the site icon. Default 512 (pixels).
835	* @param string $url Optional. Fallback url if no site icon is found. Default empty.
836	* @param int $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
837	*/
838	function site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
839	echo esc_url( get_site_icon_url( $size, $url, $blog_id ) );
840	}
841
842	/**
843	* Whether the site has a Site Icon.
844	*
845	* @since 4.3.0
846	*
847	* @param int $blog_id Optional. ID of the blog in question. Default current blog.
848	* @return bool Whether the site has a site icon or not.
849	*/
850	function has_site_icon( $blog_id = 0 ) {
851	return (bool) get_site_icon_url( 512, '', $blog_id );
852	}
853
854	/**
855	* Determines whether the site has a custom logo.
856	*
857	* @since 4.5.0
858	*
859	* @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
860	* @return bool Whether the site has a custom logo or not.
861	*/
862	function has_custom_logo( $blog_id = 0 ) {
863	$switched_blog = false;
864
865	if ( is_multisite() && ! empty( $blog_id ) && (int) $blog_id !== get_current_blog_id() ) {
866	switch_to_blog( $blog_id );
867	$switched_blog = true;
868	}
869
870	$custom_logo_id = get_theme_mod( 'custom_logo' );
871
872	if ( $switched_blog ) {
873	restore_current_blog();
874	}
875
876	return (bool) $custom_logo_id;
877	}
878
879	/**
880	* Returns a custom logo, linked to home.
881	*
882	* @since 4.5.0
883	*
884	* @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
885	* @return string Custom logo markup.
886	*/
887	function get_custom_logo( $blog_id = 0 ) {
888	$html = '';
889	$switched_blog = false;
890
891	if ( is_multisite() && ! empty( $blog_id ) && (int) $blog_id !== get_current_blog_id() ) {
892	switch_to_blog( $blog_id );
893	$switched_blog = true;
894	}
895
896	$custom_logo_id = get_theme_mod( 'custom_logo' );
897
898	// We have a logo. Logo is go.
899	if ( $custom_logo_id ) {
900	$html = sprintf( '<a href="%1$s" class="custom-logo-link" rel="home" itemprop="url">%2$s</a>',
901	esc_url( home_url( '/' ) ),
902	wp_get_attachment_image( $custom_logo_id, 'full', false, array(
903	'class' => 'custom-logo',
904	'itemprop' => 'logo',
905	) )
906	);
907	}
908
909	// If no logo is set but we're in the Customizer, leave a placeholder (needed for the live preview).
910	elseif ( is_customize_preview() ) {
911	$html = sprintf( '<a href="%1$s" class="custom-logo-link" style="display:none;"><img class="custom-logo"/></a>',
912	esc_url( home_url( '/' ) )
913	);
914	}
915
916	if ( $switched_blog ) {
917	restore_current_blog();
918	}
919
920	/**
921	* Filters the custom logo output.
922	*
923	* @since 4.5.0
924	* @since 4.6.0 Added the `$blog_id` parameter.
925	*
926	* @param string $html Custom logo HTML output.
927	* @param int $blog_id ID of the blog to get the custom logo for.
928	*/
929	return apply_filters( 'get_custom_logo', $html, $blog_id );
930	}
931
932	/**
933	* Displays a custom logo, linked to home.
934	*
935	* @since 4.5.0
936	*
937	* @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
938	*/
939	function the_custom_logo( $blog_id = 0 ) {
940	echo get_custom_logo( $blog_id );
941	}
942
943	/**
944	* Returns document title for the current page.
945	*
946	* @since 4.4.0
947	*
948	* @global int $page Page number of a single post.
949	* @global int $paged Page number of a list of posts.
950	*
951	* @return string Tag with the document title.
952	*/
953	function wp_get_document_title() {
954
955	/**
956	* Filters the document title before it is generated.
957	*
958	* Passing a non-empty value will short-circuit wp_get_document_title(),
959	* returning that value instead.
960	*
961	* @since 4.4.0
962	*
963	* @param string $title The document title. Default empty string.
964	*/
965	$title = apply_filters( 'pre_get_document_title', '' );
966	if ( ! empty( $title ) ) {
967	return $title;
968	}
969
970	global $page, $paged;
971
972	$title = array(
973	'title' => '',
974	);
975
976	// If it's a 404 page, use a "Page not found" title.
977	if ( is_404() ) {
978	$title['title'] = __( 'Page not found' );
979
980	// If it's a search, use a dynamic search results title.
981	} elseif ( is_search() ) {
982	/* translators: %s: search phrase */
983	$title['title'] = sprintf( __( 'Search Results for “%s”' ), get_search_query() );
984
985	// If on the front page, use the site title.
986	} elseif ( is_front_page() ) {
987	$title['title'] = get_bloginfo( 'name', 'display' );
988
989	// If on a post type archive, use the post type archive title.
990	} elseif ( is_post_type_archive() ) {
991	$title['title'] = post_type_archive_title( '', false );
992
993	// If on a taxonomy archive, use the term title.
994	} elseif ( is_tax() ) {
995	$title['title'] = single_term_title( '', false );
996
997	/*
998	* If we're on the blog page that is not the homepage or
999	* a single post of any post type, use the post title.
1000	*/
1001	} elseif ( is_home() \|\| is_singular() ) {
1002	$title['title'] = single_post_title( '', false );
1003
1004	// If on a category or tag archive, use the term title.
1005	} elseif ( is_category() \|\| is_tag() ) {
1006	$title['title'] = single_term_title( '', false );
1007
1008	// If on an author archive, use the author's display name.
1009	} elseif ( is_author() && $author = get_queried_object() ) {
1010	$title['title'] = $author->display_name;
1011
1012	// If it's a date archive, use the date as the title.
1013	} elseif ( is_year() ) {
1014	$title['title'] = get_the_date( _x( 'Y', 'yearly archives date format' ) );
1015
1016	} elseif ( is_month() ) {
1017	$title['title'] = get_the_date( _x( 'F Y', 'monthly archives date format' ) );
1018
1019	} elseif ( is_day() ) {
1020	$title['title'] = get_the_date();
1021	}
1022
1023	// Add a page number if necessary.
1024	if ( ( $paged >= 2 \|\| $page >= 2 ) && ! is_404() ) {
1025	$title['page'] = sprintf( __( 'Page %s' ), max( $paged, $page ) );
1026	}
1027
1028	// Append the description or site title to give context.
1029	if ( is_front_page() ) {
1030	$title['tagline'] = get_bloginfo( 'description', 'display' );
1031	} else {
1032	$title['site'] = get_bloginfo( 'name', 'display' );
1033	}
1034
1035	/**
1036	* Filters the separator for the document title.
1037	*
1038	* @since 4.4.0
1039	*
1040	* @param string $sep Document title separator. Default '-'.
1041	*/
1042	$sep = apply_filters( 'document_title_separator', '-' );
1043
1044	/**
1045	* Filters the parts of the document title.
1046	*
1047	* @since 4.4.0
1048	*
1049	* @param array $title {
1050	* The document title parts.
1051	*
1052	* @type string $title Title of the viewed page.
1053	* @type string $page Optional. Page number if paginated.
1054	* @type string $tagline Optional. Site description when on home page.
1055	* @type string $site Optional. Site title when not on home page.
1056	* }
1057	*/
1058	$title = apply_filters( 'document_title_parts', $title );
1059
1060	$title = implode( " $sep ", array_filter( $title ) );
1061	$title = wptexturize( $title );
1062	$title = convert_chars( $title );
1063	$title = esc_html( $title );
1064	$title = capital_P_dangit( $title );
1065
1066	return $title;
1067	}
1068
1069	/**
1070	* Displays title tag with content.
1071	*
1072	* @ignore
1073	* @since 4.1.0
1074	* @since 4.4.0 Improved title output replaced `wp_title()`.
1075	* @access private
1076	*/
1077	function _wp_render_title_tag() {
1078	if ( ! current_theme_supports( 'title-tag' ) ) {
1079	return;
1080	}
1081
1082	echo '<title>' . wp_get_document_title() . '</title>' . "\n";
1083	}
1084
1085	/**
1086	* Display or retrieve page title for all areas of blog.
1087	*
1088	* By default, the page title will display the separator before the page title,
1089	* so that the blog title will be before the page title. This is not good for
1090	* title display, since the blog title shows up on most tabs and not what is
1091	* important, which is the page that the user is looking at.
1092	*
1093	* There are also SEO benefits to having the blog title after or to the 'right'
1094	* of the page title. However, it is mostly common sense to have the blog title
1095	* to the right with most browsers supporting tabs. You can achieve this by
1096	* using the seplocation parameter and setting the value to 'right'. This change
1097	* was introduced around 2.5.0, in case backward compatibility of themes is
1098	* important.
1099	*
1100	* @since 1.0.0
1101	*
1102	* @global WP_Locale $wp_locale
1103	*
1104	* @param string $sep Optional, default is '»'. How to separate the various items
1105	* within the page title.
1106	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1107	* @param string $seplocation Optional. Direction to display title, 'right'.
1108	* @return string\|null String on retrieve, null when displaying.
1109	*/
1110	function wp_title( $sep = '»', $display = true, $seplocation = '' ) {
1111	global $wp_locale;
1112
1113	$m = get_query_var( 'm' );
1114	$year = get_query_var( 'year' );
1115	$monthnum = get_query_var( 'monthnum' );
1116	$day = get_query_var( 'day' );
1117	$search = get_query_var( 's' );
1118	$title = '';
1119
1120	$t_sep = '%WP_TITLE_SEP%'; // Temporary separator, for accurate flipping, if necessary
1121
1122	// If there is a post
1123	if ( is_single() \|\| ( is_home() && ! is_front_page() ) \|\| ( is_page() && ! is_front_page() ) ) {
1124	$title = single_post_title( '', false );
1125	}
1126
1127	// If there's a post type archive
1128	if ( is_post_type_archive() ) {
1129	$post_type = get_query_var( 'post_type' );
1130	if ( is_array( $post_type ) ) {
1131	$post_type = reset( $post_type );
1132	}
1133	$post_type_object = get_post_type_object( $post_type );
1134	if ( ! $post_type_object->has_archive ) {
1135	$title = post_type_archive_title( '', false );
1136	}
1137	}
1138
1139	// If there's a category or tag
1140	if ( is_category() \|\| is_tag() ) {
1141	$title = single_term_title( '', false );
1142	}
1143
1144	// If there's a taxonomy
1145	if ( is_tax() ) {
1146	$term = get_queried_object();
1147	if ( $term ) {
1148	$tax = get_taxonomy( $term->taxonomy );
1149	$title = single_term_title( $tax->labels->name . $t_sep, false );
1150	}
1151	}
1152
1153	// If there's an author
1154	if ( is_author() && ! is_post_type_archive() ) {
1155	$author = get_queried_object();
1156	if ( $author ) {
1157	$title = $author->display_name;
1158	}
1159	}
1160
1161	// Post type archives with has_archive should override terms.
1162	if ( is_post_type_archive() && $post_type_object->has_archive ) {
1163	$title = post_type_archive_title( '', false );
1164	}
1165
1166	// If there's a month
1167	if ( is_archive() && ! empty( $m ) ) {
1168	$my_year = substr( $m, 0, 4 );
1169	$my_month = $wp_locale->get_month( substr( $m, 4, 2 ) );
1170	$my_day = intval( substr( $m, 6, 2 ) );
1171	$title = $my_year . ( $my_month ? $t_sep . $my_month : '' ) . ( $my_day ? $t_sep . $my_day : '' );
1172	}
1173
1174	// If there's a year
1175	if ( is_archive() && ! empty( $year ) ) {
1176	$title = $year;
1177	if ( ! empty( $monthnum ) ) {
1178	$title .= $t_sep . $wp_locale->get_month( $monthnum );
1179	}
1180	if ( ! empty( $day ) ) {
1181	$title .= $t_sep . zeroise( $day, 2 );
1182	}
1183	}
1184
1185	// If it's a search
1186	if ( is_search() ) {
1187	/* translators: 1: separator, 2: search phrase */
1188	$title = sprintf( __( 'Search Results %1$s %2$s' ), $t_sep, strip_tags( $search ) );
1189	}
1190
1191	// If it's a 404 page
1192	if ( is_404() ) {
1193	$title = __( 'Page not found' );
1194	}
1195
1196	$prefix = '';
1197	if ( ! empty( $title ) ) {
1198	$prefix = " $sep ";
1199	}
1200
1201	/**
1202	* Filters the parts of the page title.
1203	*
1204	* @since 4.0.0
1205	*
1206	* @param array $title_array Parts of the page title.
1207	*/
1208	$title_array = apply_filters( 'wp_title_parts', explode( $t_sep, $title ) );
1209
1210	// Determines position of the separator and direction of the breadcrumb
1211	if ( 'right' == $seplocation ) { // sep on right, so reverse the order
1212	$title_array = array_reverse( $title_array );
1213	$title = implode( " $sep ", $title_array ) . $prefix;
1214	} else {
1215	$title = $prefix . implode( " $sep ", $title_array );
1216	}
1217
1218	/**
1219	* Filters the text of the page title.
1220	*
1221	* @since 2.0.0
1222	*
1223	* @param string $title Page title.
1224	* @param string $sep Title separator.
1225	* @param string $seplocation Location of the separator (left or right).
1226	*/
1227	$title = apply_filters( 'wp_title', $title, $sep, $seplocation );
1228
1229	// Send it out
1230	if ( $display ) {
1231	echo $title;
1232	} else {
1233	return $title;
1234	}
1235	}
1236
1237	/**
1238	* Display or retrieve page title for post.
1239	*
1240	* This is optimized for single.php template file for displaying the post title.
1241	*
1242	* It does not support placing the separator after the title, but by leaving the
1243	* prefix parameter empty, you can set the title separator manually. The prefix
1244	* does not automatically place a space between the prefix, so if there should
1245	* be a space, the parameter value will need to have it at the end.
1246	*
1247	* @since 0.71
1248	*
1249	* @param string $prefix Optional. What to display before the title.
1250	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1251	* @return string\|void Title when retrieving.
1252	*/
1253	function single_post_title( $prefix = '', $display = true ) {
1254	$_post = get_queried_object();
1255
1256	if ( !isset($_post->post_title) )
1257	return;
1258
1259	/**
1260	* Filters the page title for a single post.
1261	*
1262	* @since 0.71
1263	*
1264	* @param string $_post_title The single post page title.
1265	* @param object $_post The current queried object as returned by get_queried_object().
1266	*/
1267	$title = apply_filters( 'single_post_title', $_post->post_title, $_post );
1268	if ( $display )
1269	echo $prefix . $title;
1270	else
1271	return $prefix . $title;
1272	}
1273
1274	/**
1275	* Display or retrieve title for a post type archive.
1276	*
1277	* This is optimized for archive.php and archive-{$post_type}.php template files
1278	* for displaying the title of the post type.
1279	*
1280	* @since 3.1.0
1281	*
1282	* @param string $prefix Optional. What to display before the title.
1283	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1284	* @return string\|void Title when retrieving, null when displaying or failure.
1285	*/
1286	function post_type_archive_title( $prefix = '', $display = true ) {
1287	if ( ! is_post_type_archive() )
1288	return;
1289
1290	$post_type = get_query_var( 'post_type' );
1291	if ( is_array( $post_type ) )
1292	$post_type = reset( $post_type );
1293
1294	$post_type_obj = get_post_type_object( $post_type );
1295
1296	/**
1297	* Filters the post type archive title.
1298	*
1299	* @since 3.1.0
1300	*
1301	* @param string $post_type_name Post type 'name' label.
1302	* @param string $post_type Post type.
1303	*/
1304	$title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type );
1305
1306	if ( $display )
1307	echo $prefix . $title;
1308	else
1309	return $prefix . $title;
1310	}
1311
1312	/**
1313	* Display or retrieve page title for category archive.
1314	*
1315	* Useful for category template files for displaying the category page title.
1316	* The prefix does not automatically place a space between the prefix, so if
1317	* there should be a space, the parameter value will need to have it at the end.
1318	*
1319	* @since 0.71
1320	*
1321	* @param string $prefix Optional. What to display before the title.
1322	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1323	* @return string\|void Title when retrieving.
1324	*/
1325	function single_cat_title( $prefix = '', $display = true ) {
1326	return single_term_title( $prefix, $display );
1327	}
1328
1329	/**
1330	* Display or retrieve page title for tag post archive.
1331	*
1332	* Useful for tag template files for displaying the tag page title. The prefix
1333	* does not automatically place a space between the prefix, so if there should
1334	* be a space, the parameter value will need to have it at the end.
1335	*
1336	* @since 2.3.0
1337	*
1338	* @param string $prefix Optional. What to display before the title.
1339	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1340	* @return string\|void Title when retrieving.
1341	*/
1342	function single_tag_title( $prefix = '', $display = true ) {
1343	return single_term_title( $prefix, $display );
1344	}
1345
1346	/**
1347	* Display or retrieve page title for taxonomy term archive.
1348	*
1349	* Useful for taxonomy term template files for displaying the taxonomy term page title.
1350	* The prefix does not automatically place a space between the prefix, so if there should
1351	* be a space, the parameter value will need to have it at the end.
1352	*
1353	* @since 3.1.0
1354	*
1355	* @param string $prefix Optional. What to display before the title.
1356	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1357	* @return string\|void Title when retrieving.
1358	*/
1359	function single_term_title( $prefix = '', $display = true ) {
1360	$term = get_queried_object();
1361
1362	if ( !$term )
1363	return;
1364
1365	if ( is_category() ) {
1366	/**
1367	* Filters the category archive page title.
1368	*
1369	* @since 2.0.10
1370	*
1371	* @param string $term_name Category name for archive being displayed.
1372	*/
1373	$term_name = apply_filters( 'single_cat_title', $term->name );
1374	} elseif ( is_tag() ) {
1375	/**
1376	* Filters the tag archive page title.
1377	*
1378	* @since 2.3.0
1379	*
1380	* @param string $term_name Tag name for archive being displayed.
1381	*/
1382	$term_name = apply_filters( 'single_tag_title', $term->name );
1383	} elseif ( is_tax() ) {
1384	/**
1385	* Filters the custom taxonomy archive page title.
1386	*
1387	* @since 3.1.0
1388	*
1389	* @param string $term_name Term name for archive being displayed.
1390	*/
1391	$term_name = apply_filters( 'single_term_title', $term->name );
1392	} else {
1393	return;
1394	}
1395
1396	if ( empty( $term_name ) )
1397	return;
1398
1399	if ( $display )
1400	echo $prefix . $term_name;
1401	else
1402	return $prefix . $term_name;
1403	}
1404
1405	/**
1406	* Display or retrieve page title for post archive based on date.
1407	*
1408	* Useful for when the template only needs to display the month and year,
1409	* if either are available. The prefix does not automatically place a space
1410	* between the prefix, so if there should be a space, the parameter value
1411	* will need to have it at the end.
1412	*
1413	* @since 0.71
1414	*
1415	* @global WP_Locale $wp_locale
1416	*
1417	* @param string $prefix Optional. What to display before the title.
1418	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1419	* @return string\|void Title when retrieving.
1420	*/
1421	function single_month_title($prefix = '', $display = true ) {
1422	global $wp_locale;
1423
1424	$m = get_query_var('m');
1425	$year = get_query_var('year');
1426	$monthnum = get_query_var('monthnum');
1427
1428	if ( !empty($monthnum) && !empty($year) ) {
1429	$my_year = $year;
1430	$my_month = $wp_locale->get_month($monthnum);
1431	} elseif ( !empty($m) ) {
1432	$my_year = substr($m, 0, 4);
1433	$my_month = $wp_locale->get_month(substr($m, 4, 2));
1434	}
1435
1436	if ( empty($my_month) )
1437	return false;
1438
1439	$result = $prefix . $my_month . $prefix . $my_year;
1440
1441	if ( !$display )
1442	return $result;
1443	echo $result;
1444	}
1445
1446	/**
1447	* Display the archive title based on the queried object.
1448	*
1449	* @since 4.1.0
1450	*
1451	* @see get_the_archive_title()
1452	*
1453	* @param string $before Optional. Content to prepend to the title. Default empty.
1454	* @param string $after Optional. Content to append to the title. Default empty.
1455	*/
1456	function the_archive_title( $before = '', $after = '' ) {
1457	$title = get_the_archive_title();
1458
1459	if ( ! empty( $title ) ) {
1460	echo $before . $title . $after;
1461	}
1462	}
1463
1464	/**
1465	* Retrieve the archive title based on the queried object.
1466	*
1467	* @since 4.1.0
1468	*
1469	* @return string Archive title.
1470	*/
1471	function get_the_archive_title() {
1472	if ( is_category() ) {
1473	/* translators: Category archive title. 1: Category name */
1474	$title = sprintf( __( 'Category: %s' ), single_cat_title( '', false ) );
1475	} elseif ( is_tag() ) {
1476	/* translators: Tag archive title. 1: Tag name */
1477	$title = sprintf( __( 'Tag: %s' ), single_tag_title( '', false ) );
1478	} elseif ( is_author() ) {
1479	/* translators: Author archive title. 1: Author name */
1480	$title = sprintf( __( 'Author: %s' ), '<span class="vcard">' . get_the_author() . '</span>' );
1481	} elseif ( is_year() ) {
1482	/* translators: Yearly archive title. 1: Year */
1483	$title = sprintf( __( 'Year: %s' ), get_the_date( _x( 'Y', 'yearly archives date format' ) ) );
1484	} elseif ( is_month() ) {
1485	/* translators: Monthly archive title. 1: Month name and year */
1486	$title = sprintf( __( 'Month: %s' ), get_the_date( _x( 'F Y', 'monthly archives date format' ) ) );
1487	} elseif ( is_day() ) {
1488	/* translators: Daily archive title. 1: Date */
1489	$title = sprintf( __( 'Day: %s' ), get_the_date( _x( 'F j, Y', 'daily archives date format' ) ) );
1490	} elseif ( is_tax( 'post_format' ) ) {
1491	if ( is_tax( 'post_format', 'post-format-aside' ) ) {
1492	$title = _x( 'Asides', 'post format archive title' );
1493	} elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {
1494	$title = _x( 'Galleries', 'post format archive title' );
1495	} elseif ( is_tax( 'post_format', 'post-format-image' ) ) {
1496	$title = _x( 'Images', 'post format archive title' );
1497	} elseif ( is_tax( 'post_format', 'post-format-video' ) ) {
1498	$title = _x( 'Videos', 'post format archive title' );
1499	} elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {
1500	$title = _x( 'Quotes', 'post format archive title' );
1501	} elseif ( is_tax( 'post_format', 'post-format-link' ) ) {
1502	$title = _x( 'Links', 'post format archive title' );
1503	} elseif ( is_tax( 'post_format', 'post-format-status' ) ) {
1504	$title = _x( 'Statuses', 'post format archive title' );
1505	} elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {
1506	$title = _x( 'Audio', 'post format archive title' );
1507	} elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {
1508	$title = _x( 'Chats', 'post format archive title' );
1509	}
1510	} elseif ( is_post_type_archive() ) {
1511	/* translators: Post type archive title. 1: Post type name */
1512	$title = sprintf( __( 'Archives: %s' ), post_type_archive_title( '', false ) );
1513	} elseif ( is_tax() ) {
1514	$tax = get_taxonomy( get_queried_object()->taxonomy );
1515	/* translators: Taxonomy term archive title. 1: Taxonomy singular name, 2: Current taxonomy term */
1516	$title = sprintf( __( '%1$s: %2$s' ), $tax->labels->singular_name, single_term_title( '', false ) );
1517	} else {
1518	$title = __( 'Archives' );
1519	}
1520
1521	/**
1522	* Filters the archive title.
1523	*
1524	* @since 4.1.0
1525	*
1526	* @param string $title Archive title to be displayed.
1527	*/
1528	return apply_filters( 'get_the_archive_title', $title );
1529	}
1530
1531	/**
1532	* Display category, tag, term, or author description.
1533	*
1534	* @since 4.1.0
1535	*
1536	* @see get_the_archive_description()
1537	*
1538	* @param string $before Optional. Content to prepend to the description. Default empty.
1539	* @param string $after Optional. Content to append to the description. Default empty.
1540	*/
1541	function the_archive_description( $before = '', $after = '' ) {
1542	$description = get_the_archive_description();
1543	if ( $description ) {
1544	echo $before . $description . $after;
1545	}
1546	}
1547
1548	/**
1549	* Retrieve category, tag, term, or author description.
1550	*
1551	* @since 4.1.0
1552	* @since 4.7.0 Added support for author archives.
1553	*
1554	* @see term_description()
1555	*
1556	* @return string Archive description.
1557	*/
1558	function get_the_archive_description() {
1559	if ( is_author() ) {
1560	$description = get_the_author_meta( 'description' );
1561	} else {
1562	$description = term_description();
1563	}
1564
1565	/**
1566	* Filters the archive description.
1567	*
1568	* @since 4.1.0
1569	*
1570	* @param string $description Archive description to be displayed.
1571	*/
1572	return apply_filters( 'get_the_archive_description', $description );
1573	}
1574
1575	/**
1576	* Retrieve archive link content based on predefined or custom code.
1577	*
1578	* The format can be one of four styles. The 'link' for head element, 'option'
1579	* for use in the select element, 'html' for use in list (either ol or ul HTML
1580	* elements). Custom content is also supported using the before and after
1581	* parameters.
1582	*
1583	* The 'link' format uses the `<link>` HTML element with the archives
1584	* relationship. The before and after parameters are not used. The text
1585	* parameter is used to describe the link.
1586	*
1587	* The 'option' format uses the option HTML element for use in select element.
1588	* The value is the url parameter and the before and after parameters are used
1589	* between the text description.
1590	*
1591	* The 'html' format, which is the default, uses the li HTML element for use in
1592	* the list HTML elements. The before parameter is before the link and the after
1593	* parameter is after the closing link.
1594	*
1595	* The custom format uses the before parameter before the link ('a' HTML
1596	* element) and the after parameter after the closing link tag. If the above
1597	* three values for the format are not used, then custom format is assumed.
1598	*
1599	* @since 1.0.0
1600	*
1601	* @param string $url URL to archive.
1602	* @param string $text Archive text description.
1603	* @param string $format Optional, default is 'html'. Can be 'link', 'option', 'html', or custom.
1604	* @param string $before Optional. Content to prepend to the description. Default empty.
1605	* @param string $after Optional. Content to append to the description. Default empty.
1606	* @return string HTML link content for archive.
1607	*/
1608	function get_archives_link($url, $text, $format = 'html', $before = '', $after = '') {
1609	$text = wptexturize($text);
1610	$url = esc_url($url);
1611
1612	if ('link' == $format)
1613	$link_html = "\t<link rel='archives' title='" . esc_attr( $text ) . "' href='$url' />\n";
1614	elseif ('option' == $format)
1615	$link_html = "\t<option value='$url'>$before $text $after</option>\n";
1616	elseif ('html' == $format)
1617	$link_html = "\t<li>$before<a href='$url'>$text</a>$after</li>\n";
1618	else // custom
1619	$link_html = "\t$before<a href='$url'>$text</a>$after\n";
1620
1621	/**
1622	* Filters the archive link content.
1623	*
1624	* @since 2.6.0
1625	* @since 4.5.0 Added the `$url`, `$text`, `$format`, `$before`, and `$after` parameters.
1626	*
1627	* @param string $link_html The archive HTML link content.
1628	* @param string $url URL to archive.
1629	* @param string $text Archive text description.
1630	* @param string $format Link format. Can be 'link', 'option', 'html', or custom.
1631	* @param string $before Content to prepend to the description.
1632	* @param string $after Content to append to the description.
1633	*/
1634	return apply_filters( 'get_archives_link', $link_html, $url, $text, $format, $before, $after );
1635	}
1636
1637	/**
1638	* Display archive links based on type and format.
1639	*
1640	* @since 1.2.0
1641	* @since 4.4.0 $post_type arg was added.
1642	*
1643	* @see get_archives_link()
1644	*
1645	* @global wpdb $wpdb
1646	* @global WP_Locale $wp_locale
1647	*
1648	* @param string\|array $args {
1649	* Default archive links arguments. Optional.
1650	*
1651	* @type string $type Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly',
1652	* 'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha'
1653	* display the same archive link list as well as post titles instead
1654	* of displaying dates. The difference between the two is that 'alpha'
1655	* will order by post title and 'postbypost' will order by post date.
1656	* Default 'monthly'.
1657	* @type string\|int $limit Number of links to limit the query to. Default empty (no limit).
1658	* @type string $format Format each link should take using the $before and $after args.
1659	* Accepts 'link' (`<link>` tag), 'option' (`<option>` tag), 'html'
1660	* (`<li>` tag), or a custom format, which generates a link anchor
1661	* with $before preceding and $after succeeding. Default 'html'.
1662	* @type string $before Markup to prepend to the beginning of each link. Default empty.
1663	* @type string $after Markup to append to the end of each link. Default empty.
1664	* @type bool $show_post_count Whether to display the post count alongside the link. Default false.
1665	* @type bool\|int $echo Whether to echo or return the links list. Default 1\|true to echo.
1666	* @type string $order Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'.
1667	* Default 'DESC'.
1668	* @type string $post_type Post type. Default 'post'.
1669	* }
1670	* @return string\|void String when retrieving.
1671	*/
1672	function wp_get_archives( $args = '' ) {
1673	global $wpdb, $wp_locale;
1674
1675	$defaults = array(
1676	'type' => 'monthly', 'limit' => '',
1677	'format' => 'html', 'before' => '',
1678	'after' => '', 'show_post_count' => false,
1679	'echo' => 1, 'order' => 'DESC',
1680	'post_type' => 'post'
1681	);
1682
1683	$r = wp_parse_args( $args, $defaults );
1684
1685	$post_type_object = get_post_type_object( $r['post_type'] );
1686	if ( ! is_post_type_viewable( $post_type_object ) ) {
1687	return;
1688	}
1689	$r['post_type'] = $post_type_object->name;
1690
1691	if ( '' == $r['type'] ) {
1692	$r['type'] = 'monthly';
1693	}
1694
1695	if ( ! empty( $r['limit'] ) ) {
1696	$r['limit'] = absint( $r['limit'] );
1697	$r['limit'] = ' LIMIT ' . $r['limit'];
1698	}
1699
1700	$order = strtoupper( $r['order'] );
1701	if ( $order !== 'ASC' ) {
1702	$order = 'DESC';
1703	}
1704
1705	// this is what will separate dates on weekly archive links
1706	$archive_week_separator = '–';
1707
1708	$sql_where = $wpdb->prepare( "WHERE post_type = %s AND post_status = 'publish'", $r['post_type'] );
1709
1710	/**
1711	* Filters the SQL WHERE clause for retrieving archives.
1712	*
1713	* @since 2.2.0
1714	*
1715	* @param string $sql_where Portion of SQL query containing the WHERE clause.
1716	* @param array $r An array of default arguments.
1717	*/
1718	$where = apply_filters( 'getarchives_where', $sql_where, $r );
1719
1720	/**
1721	* Filters the SQL JOIN clause for retrieving archives.
1722	*
1723	* @since 2.2.0
1724	*
1725	* @param string $sql_join Portion of SQL query containing JOIN clause.
1726	* @param array $r An array of default arguments.
1727	*/
1728	$join = apply_filters( 'getarchives_join', '', $r );
1729
1730	$output = '';
1731
1732	$last_changed = wp_cache_get_last_changed( 'posts' );
1733
1734	$limit = $r['limit'];
1735
1736	if ( 'monthly' == $r['type'] ) {
1737	$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order $limit";
1738	$key = md5( $query );
1739	$key = "wp_get_archives:$key:$last_changed";
1740	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1741	$results = $wpdb->get_results( $query );
1742	wp_cache_set( $key, $results, 'posts' );
1743	}
1744	if ( $results ) {
1745	$after = $r['after'];
1746	foreach ( (array) $results as $result ) {
1747	$url = get_month_link( $result->year, $result->month );
1748	if ( 'post' !== $r['post_type'] ) {
1749	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1750	}
1751	/* translators: 1: month name, 2: 4-digit year */
1752	$text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
1753	if ( $r['show_post_count'] ) {
1754	$r['after'] = ' (' . $result->posts . ')' . $after;
1755	}
1756	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1757	}
1758	}
1759	} elseif ( 'yearly' == $r['type'] ) {
1760	$query = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date) ORDER BY post_date $order $limit";
1761	$key = md5( $query );
1762	$key = "wp_get_archives:$key:$last_changed";
1763	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1764	$results = $wpdb->get_results( $query );
1765	wp_cache_set( $key, $results, 'posts' );
1766	}
1767	if ( $results ) {
1768	$after = $r['after'];
1769	foreach ( (array) $results as $result) {
1770	$url = get_year_link( $result->year );
1771	if ( 'post' !== $r['post_type'] ) {
1772	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1773	}
1774	$text = sprintf( '%d', $result->year );
1775	if ( $r['show_post_count'] ) {
1776	$r['after'] = ' (' . $result->posts . ')' . $after;
1777	}
1778	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1779	}
1780	}
1781	} elseif ( 'daily' == $r['type'] ) {
1782	$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date $order $limit";
1783	$key = md5( $query );
1784	$key = "wp_get_archives:$key:$last_changed";
1785	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1786	$results = $wpdb->get_results( $query );
1787	wp_cache_set( $key, $results, 'posts' );
1788	}
1789	if ( $results ) {
1790	$after = $r['after'];
1791	foreach ( (array) $results as $result ) {
1792	$url = get_day_link( $result->year, $result->month, $result->dayofmonth );
1793	if ( 'post' !== $r['post_type'] ) {
1794	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1795	}
1796	$date = sprintf( '%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth );
1797	$text = mysql2date( get_option( 'date_format' ), $date );
1798	if ( $r['show_post_count'] ) {
1799	$r['after'] = ' (' . $result->posts . ')' . $after;
1800	}
1801	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1802	}
1803	}
1804	} elseif ( 'weekly' == $r['type'] ) {
1805	$week = _wp_mysql_week( '`post_date`' );
1806	$query = "SELECT DISTINCT $week AS `week`, YEAR( `post_date` ) AS `yr`, DATE_FORMAT( `post_date`, '%Y-%m-%d' ) AS `yyyymmdd`, count( `ID` ) AS `posts` FROM `$wpdb->posts` $join $where GROUP BY $week, YEAR( `post_date` ) ORDER BY `post_date` $order $limit";
1807	$key = md5( $query );
1808	$key = "wp_get_archives:$key:$last_changed";
1809	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1810	$results = $wpdb->get_results( $query );
1811	wp_cache_set( $key, $results, 'posts' );
1812	}
1813	$arc_w_last = '';
1814	if ( $results ) {
1815	$after = $r['after'];
1816	foreach ( (array) $results as $result ) {
1817	if ( $result->week != $arc_w_last ) {
1818	$arc_year = $result->yr;
1819	$arc_w_last = $result->week;
1820	$arc_week = get_weekstartend( $result->yyyymmdd, get_option( 'start_of_week' ) );
1821	$arc_week_start = date_i18n( get_option( 'date_format' ), $arc_week['start'] );
1822	$arc_week_end = date_i18n( get_option( 'date_format' ), $arc_week['end'] );
1823	$url = add_query_arg( array( 'm' => $arc_year, 'w' => $result->week, ), home_url( '/' ) );
1824	if ( 'post' !== $r['post_type'] ) {
1825	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1826	}
1827	$text = $arc_week_start . $archive_week_separator . $arc_week_end;
1828	if ( $r['show_post_count'] ) {
1829	$r['after'] = ' (' . $result->posts . ')' . $after;
1830	}
1831	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1832	}
1833	}
1834	}
1835	} elseif ( ( 'postbypost' == $r['type'] ) \|\| ('alpha' == $r['type'] ) ) {
1836	$orderby = ( 'alpha' == $r['type'] ) ? 'post_title ASC ' : 'post_date DESC, ID DESC ';
1837	$query = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
1838	$key = md5( $query );
1839	$key = "wp_get_archives:$key:$last_changed";
1840	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1841	$results = $wpdb->get_results( $query );
1842	wp_cache_set( $key, $results, 'posts' );
1843	}
1844	if ( $results ) {
1845	foreach ( (array) $results as $result ) {
1846	if ( $result->post_date != '0000-00-00 00:00:00' ) {
1847	$url = get_permalink( $result );
1848	if ( $result->post_title ) {
1849	/** This filter is documented in wp-includes/post-template.php */
1850	$text = strip_tags( apply_filters( 'the_title', $result->post_title, $result->ID ) );
1851	} else {
1852	$text = $result->ID;
1853	}
1854	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1855	}
1856	}
1857	}
1858	}
1859	if ( $r['echo'] ) {
1860	echo $output;
1861	} else {
1862	return $output;
1863	}
1864	}
1865
1866	/**
1867	* Get number of days since the start of the week.
1868	*
1869	* @since 1.5.0
1870	*
1871	* @param int $num Number of day.
1872	* @return int Days since the start of the week.
1873	*/
1874	function calendar_week_mod($num) {
1875	$base = 7;
1876	return ($num - $base*floor($num/$base));
1877	}
1878
1879	/**
1880	* Display calendar with days that have posts as links.
1881	*
1882	* The calendar is cached, which will be retrieved, if it exists. If there are
1883	* no posts for the month, then it will not be displayed.
1884	*
1885	* @since 1.0.0
1886	*
1887	* @global wpdb $wpdb
1888	* @global int $m
1889	* @global int $monthnum
1890	* @global int $year
1891	* @global WP_Locale $wp_locale
1892	* @global array $posts
1893	*
1894	* @param bool $initial Optional, default is true. Use initial calendar names.
1895	* @param bool $echo Optional, default is true. Set to false for return.
1896	* @return string\|void String when retrieving.
1897	*/
1898	function get_calendar( $initial = true, $echo = true ) {
1899	global $wpdb, $m, $monthnum, $year, $wp_locale, $posts;
1900
1901	$key = md5( $m . $monthnum . $year );
1902	$cache = wp_cache_get( 'get_calendar', 'calendar' );
1903
1904	if ( $cache && is_array( $cache ) && isset( $cache[ $key ] ) ) {
1905	/** This filter is documented in wp-includes/general-template.php */
1906	$output = apply_filters( 'get_calendar', $cache[ $key ] );
1907
1908	if ( $echo ) {
1909	echo $output;
1910	return;
1911	}
1912
1913	return $output;
1914	}
1915
1916	if ( ! is_array( $cache ) ) {
1917	$cache = array();
1918	}
1919
1920	// Quick check. If we have no posts at all, abort!
1921	if ( ! $posts ) {
1922	$gotsome = $wpdb->get_var("SELECT 1 as test FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1");
1923	if ( ! $gotsome ) {
1924	$cache[ $key ] = '';
1925	wp_cache_set( 'get_calendar', $cache, 'calendar' );
1926	return;
1927	}
1928	}
1929
1930	if ( isset( $_GET['w'] ) ) {
1931	$w = (int) $_GET['w'];
1932	}
1933	// week_begins = 0 stands for Sunday
1934	$week_begins = (int) get_option( 'start_of_week' );
1935	$ts = current_time( 'timestamp' );
1936
1937	// Let's figure out when we are
1938	if ( ! empty( $monthnum ) && ! empty( $year ) ) {
1939	$thismonth = zeroise( intval( $monthnum ), 2 );
1940	$thisyear = (int) $year;
1941	} elseif ( ! empty( $w ) ) {
1942	// We need to get the month from MySQL
1943	$thisyear = (int) substr( $m, 0, 4 );
1944	//it seems MySQL's weeks disagree with PHP's
1945	$d = ( ( $w - 1 ) * 7 ) + 6;
1946	$thismonth = $wpdb->get_var("SELECT DATE_FORMAT((DATE_ADD('{$thisyear}0101', INTERVAL $d DAY) ), '%m')");
1947	} elseif ( ! empty( $m ) ) {
1948	$thisyear = (int) substr( $m, 0, 4 );
1949	if ( strlen( $m ) < 6 ) {
1950	$thismonth = '01';
1951	} else {
1952	$thismonth = zeroise( (int) substr( $m, 4, 2 ), 2 );
1953	}
1954	} else {
1955	$thisyear = gmdate( 'Y', $ts );
1956	$thismonth = gmdate( 'm', $ts );
1957	}
1958
1959	$unixmonth = mktime( 0, 0 , 0, $thismonth, 1, $thisyear );
1960	$last_day = date( 't', $unixmonth );
1961
1962	// Get the next and previous month and year with at least one post
1963	$previous = $wpdb->get_row("SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
1964	FROM $wpdb->posts
1965	WHERE post_date < '$thisyear-$thismonth-01'
1966	AND post_type = 'post' AND post_status = 'publish'
1967	ORDER BY post_date DESC
1968	LIMIT 1");
1969	$next = $wpdb->get_row("SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
1970	FROM $wpdb->posts
1971	WHERE post_date > '$thisyear-$thismonth-{$last_day} 23:59:59'
1972	AND post_type = 'post' AND post_status = 'publish'
1973	ORDER BY post_date ASC
1974	LIMIT 1");
1975
1976	/* translators: Calendar caption: 1: month name, 2: 4-digit year */
1977	$calendar_caption = _x('%1$s %2$s', 'calendar caption');
1978	$calendar_output = '<table id="wp-calendar">
1979	<caption>' . sprintf(
1980	$calendar_caption,
1981	$wp_locale->get_month( $thismonth ),
1982	date( 'Y', $unixmonth )
1983	) . '</caption>
1984	<thead>
1985	<tr>';
1986
1987	$myweek = array();
1988
1989	for ( $wdcount = 0; $wdcount <= 6; $wdcount++ ) {
1990	$myweek[] = $wp_locale->get_weekday( ( $wdcount + $week_begins ) % 7 );
1991	}
1992
1993	foreach ( $myweek as $wd ) {
1994	$day_name = $initial ? $wp_locale->get_weekday_initial( $wd ) : $wp_locale->get_weekday_abbrev( $wd );
1995	$wd = esc_attr( $wd );
1996	$calendar_output .= "\n\t\t<th scope=\"col\" title=\"$wd\">$day_name</th>";
1997	}
1998
1999	$calendar_output .= '
2000	</tr>
2001	</thead>
2002
2003	<tfoot>
2004	<tr>';
2005
2006	if ( $previous ) {
2007	$calendar_output .= "\n\t\t".'<td colspan="3" id="prev"><a href="' . get_month_link( $previous->year, $previous->month ) . '">« ' .
2008	$wp_locale->get_month_abbrev( $wp_locale->get_month( $previous->month ) ) .
2009	'</a></td>';
2010	} else {
2011	$calendar_output .= "\n\t\t".'<td colspan="3" id="prev" class="pad"> </td>';
2012	}
2013
2014	$calendar_output .= "\n\t\t".'<td class="pad"> </td>';
2015
2016	if ( $next ) {
2017	$calendar_output .= "\n\t\t".'<td colspan="3" id="next"><a href="' . get_month_link( $next->year, $next->month ) . '">' .
2018	$wp_locale->get_month_abbrev( $wp_locale->get_month( $next->month ) ) .
2019	' »</a></td>';
2020	} else {
2021	$calendar_output .= "\n\t\t".'<td colspan="3" id="next" class="pad"> </td>';
2022	}
2023
2024	$calendar_output .= '
2025	</tr>
2026	</tfoot>
2027
2028	<tbody>
2029	<tr>';
2030
2031	$daywithpost = array();
2032
2033	// Get days with posts
2034	$dayswithposts = $wpdb->get_results("SELECT DISTINCT DAYOFMONTH(post_date)
2035	FROM $wpdb->posts WHERE post_date >= '{$thisyear}-{$thismonth}-01 00:00:00'
2036	AND post_type = 'post' AND post_status = 'publish'
2037	AND post_date <= '{$thisyear}-{$thismonth}-{$last_day} 23:59:59'", ARRAY_N);
2038	if ( $dayswithposts ) {
2039	foreach ( (array) $dayswithposts as $daywith ) {
2040	$daywithpost[] = $daywith[0];
2041	}
2042	}
2043
2044	// See how much we should pad in the beginning
2045	$pad = calendar_week_mod( date( 'w', $unixmonth ) - $week_begins );
2046	if ( 0 != $pad ) {
2047	$calendar_output .= "\n\t\t".'<td colspan="'. esc_attr( $pad ) .'" class="pad"> </td>';
2048	}
2049
2050	$newrow = false;
2051	$daysinmonth = (int) date( 't', $unixmonth );
2052
2053	for ( $day = 1; $day <= $daysinmonth; ++$day ) {
2054	if ( isset($newrow) && $newrow ) {
2055	$calendar_output .= "\n\t</tr>\n\t<tr>\n\t\t";
2056	}
2057	$newrow = false;
2058
2059	if ( $day == gmdate( 'j', $ts ) &&
2060	$thismonth == gmdate( 'm', $ts ) &&
2061	$thisyear == gmdate( 'Y', $ts ) ) {
2062	$calendar_output .= '<td id="today">';
2063	} else {
2064	$calendar_output .= '<td>';
2065	}
2066
2067	if ( in_array( $day, $daywithpost ) ) {
2068	// any posts today?
2069	$date_format = date( _x( 'F j, Y', 'daily archives date format' ), strtotime( "{$thisyear}-{$thismonth}-{$day}" ) );
2070	/* translators: Post calendar label. 1: Date */
2071	$label = sprintf( __( 'Posts published on %s' ), $date_format );
2072	$calendar_output .= sprintf(
2073	'<a href="%s" aria-label="%s">%s</a>',
2074	get_day_link( $thisyear, $thismonth, $day ),
2075	esc_attr( $label ),
2076	$day
2077	);
2078	} else {
2079	$calendar_output .= $day;
2080	}
2081	$calendar_output .= '</td>';
2082
2083	if ( 6 == calendar_week_mod( date( 'w', mktime(0, 0 , 0, $thismonth, $day, $thisyear ) ) - $week_begins ) ) {
2084	$newrow = true;
2085	}
2086	}
2087
2088	$pad = 7 - calendar_week_mod( date( 'w', mktime( 0, 0 , 0, $thismonth, $day, $thisyear ) ) - $week_begins );
2089	if ( $pad != 0 && $pad != 7 ) {
2090	$calendar_output .= "\n\t\t".'<td class="pad" colspan="'. esc_attr( $pad ) .'"> </td>';
2091	}
2092	$calendar_output .= "\n\t</tr>\n\t</tbody>\n\t</table>";
2093
2094	$cache[ $key ] = $calendar_output;
2095	wp_cache_set( 'get_calendar', $cache, 'calendar' );
2096
2097	if ( $echo ) {
2098	/**
2099	* Filters the HTML calendar output.
2100	*
2101	* @since 3.0.0
2102	*
2103	* @param string $calendar_output HTML output of the calendar.
2104	*/
2105	echo apply_filters( 'get_calendar', $calendar_output );
2106	return;
2107	}
2108	/** This filter is documented in wp-includes/general-template.php */
2109	return apply_filters( 'get_calendar', $calendar_output );
2110	}
2111
2112	/**
2113	* Purge the cached results of get_calendar.
2114	*
2115	* @see get_calendar
2116	* @since 2.1.0
2117	*/
2118	function delete_get_calendar_cache() {
2119	wp_cache_delete( 'get_calendar', 'calendar' );
2120	}
2121
2122	/**
2123	* Display all of the allowed tags in HTML format with attributes.
2124	*
2125	* This is useful for displaying in the comment area, which elements and
2126	* attributes are supported. As well as any plugins which want to display it.
2127	*
2128	* @since 1.0.1
2129	*
2130	* @global array $allowedtags
2131	*
2132	* @return string HTML allowed tags entity encoded.
2133	*/
2134	function allowed_tags() {
2135	global $allowedtags;
2136	$allowed = '';
2137	foreach ( (array) $allowedtags as $tag => $attributes ) {
2138	$allowed .= '<'.$tag;
2139	if ( 0 < count($attributes) ) {
2140	foreach ( $attributes as $attribute => $limits ) {
2141	$allowed .= ' '.$attribute.'=""';
2142	}
2143	}
2144	$allowed .= '> ';
2145	}
2146	return htmlentities( $allowed );
2147	}
2148
2149	/*** Date/Time tags ***/
2150
2151	/**
2152	* Outputs the date in iso8601 format for xml files.
2153	*
2154	* @since 1.0.0
2155	*/
2156	function the_date_xml() {
2157	echo mysql2date( 'Y-m-d', get_post()->post_date, false );
2158	}
2159
2160	/**
2161	* Display or Retrieve the date the current post was written (once per date)
2162	*
2163	* Will only output the date if the current post's date is different from the
2164	* previous one output.
2165	*
2166	* i.e. Only one date listing will show per day worth of posts shown in the loop, even if the
2167	* function is called several times for each post.
2168	*
2169	* HTML output can be filtered with 'the_date'.
2170	* Date string output can be filtered with 'get_the_date'.
2171	*
2172	* @since 0.71
2173	*
2174	* @global string\|int\|bool $currentday
2175	* @global string\|int\|bool $previousday
2176	*
2177	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2178	* @param string $before Optional. Output before the date.
2179	* @param string $after Optional. Output after the date.
2180	* @param bool $echo Optional, default is display. Whether to echo the date or return it.
2181	* @return string\|void String if retrieving.
2182	*/
2183	function the_date( $d = '', $before = '', $after = '', $echo = true ) {
2184	global $currentday, $previousday;
2185
2186	if ( is_new_day() ) {
2187	$the_date = $before . get_the_date( $d ) . $after;
2188	$previousday = $currentday;
2189
2190	/**
2191	* Filters the date a post was published for display.
2192	*
2193	* @since 0.71
2194	*
2195	* @param string $the_date The formatted date string.
2196	* @param string $d PHP date format. Defaults to 'date_format' option
2197	* if not specified.
2198	* @param string $before HTML output before the date.
2199	* @param string $after HTML output after the date.
2200	*/
2201	$the_date = apply_filters( 'the_date', $the_date, $d, $before, $after );
2202
2203	if ( $echo )
2204	echo $the_date;
2205	else
2206	return $the_date;
2207	}
2208	}
2209
2210	/**
2211	* Retrieve the date on which the post was written.
2212	*
2213	* Unlike the_date() this function will always return the date.
2214	* Modify output with the {@see 'get_the_date'} filter.
2215	*
2216	* @since 3.0.0
2217	*
2218	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2219	* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
2220	* @return false\|string Date the current post was written. False on failure.
2221	*/
2222	function get_the_date( $d = '', $post = null ) {
2223	$post = get_post( $post );
2224
2225	if ( ! $post ) {
2226	return false;
2227	}
2228
2229	if ( '' == $d ) {
2230	$the_date = mysql2date( get_option( 'date_format' ), $post->post_date );
2231	} else {
2232	$the_date = mysql2date( $d, $post->post_date );
2233	}
2234
2235	/**
2236	* Filters the date a post was published.
2237	*
2238	* @since 3.0.0
2239	*
2240	* @param string $the_date The formatted date.
2241	* @param string $d PHP date format. Defaults to 'date_format' option
2242	* if not specified.
2243	* @param int\|WP_Post $post The post object or ID.
2244	*/
2245	return apply_filters( 'get_the_date', $the_date, $d, $post );
2246	}
2247
2248	/**
2249	* Display the date on which the post was last modified.
2250	*
2251	* @since 2.1.0
2252	*
2253	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2254	* @param string $before Optional. Output before the date.
2255	* @param string $after Optional. Output after the date.
2256	* @param bool $echo Optional, default is display. Whether to echo the date or return it.
2257	* @return string\|void String if retrieving.
2258	*/
2259	function the_modified_date( $d = '', $before = '', $after = '', $echo = true ) {
2260	$the_modified_date = $before . get_the_modified_date($d) . $after;
2261
2262	/**
2263	* Filters the date a post was last modified for display.
2264	*
2265	* @since 2.1.0
2266	*
2267	* @param string $the_modified_date The last modified date.
2268	* @param string $d PHP date format. Defaults to 'date_format' option
2269	* if not specified.
2270	* @param string $before HTML output before the date.
2271	* @param string $after HTML output after the date.
2272	*/
2273	$the_modified_date = apply_filters( 'the_modified_date', $the_modified_date, $d, $before, $after );
2274
2275	if ( $echo )
2276	echo $the_modified_date;
2277	else
2278	return $the_modified_date;
2279
2280	}
2281
2282	/**
2283	* Retrieve the date on which the post was last modified.
2284	*
2285	* @since 2.1.0
2286	* @since 4.6.0 Added the `$post` parameter.
2287	*
2288	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2289	* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
2290	* @return false\|string Date the current post was modified. False on failure.
2291	*/
2292	function get_the_modified_date( $d = '', $post = null ) {
2293	$post = get_post( $post );
2294
2295	if ( ! $post ) {
2296	// For backward compatibility, failures go through the filter below.
2297	$the_time = false;
2298	} elseif ( empty( $d ) ) {
2299	$the_time = get_post_modified_time( get_option( 'date_format' ), false, $post, true );
2300	} else {
2301	$the_time = get_post_modified_time( $d, false, $post, true );
2302	}
2303
2304	/**
2305	* Filters the date a post was last modified.
2306	*
2307	* @since 2.1.0
2308	* @since 4.6.0 Added the `$post` parameter.
2309	*
2310	* @param string $the_time The formatted date.
2311	* @param string $d PHP date format. Defaults to value specified in
2312	* 'date_format' option.
2313	* @param WP_Post $post WP_Post object.
2314	*/
2315	return apply_filters( 'get_the_modified_date', $the_time, $d, $post );
2316	}
2317
2318	/**
2319	* Display the time at which the post was written.
2320	*
2321	* @since 0.71
2322	*
2323	* @param string $d Either 'G', 'U', or php date format.
2324	*/
2325	function the_time( $d = '' ) {
2326	/**
2327	* Filters the time a post was written for display.
2328	*
2329	* @since 0.71
2330	*
2331	* @param string $get_the_time The formatted time.
2332	* @param string $d The time format. Accepts 'G', 'U',
2333	* or php date format.
2334	*/
2335	echo apply_filters( 'the_time', get_the_time( $d ), $d );
2336	}
2337
2338	/**
2339	* Retrieve the time at which the post was written.
2340	*
2341	* @since 1.5.0
2342	*
2343	* @param string $d Optional. Format to use for retrieving the time the post
2344	* was written. Either 'G', 'U', or php date format defaults
2345	* to the value specified in the time_format option. Default empty.
2346	* @param int\|WP_Post $post WP_Post object or ID. Default is global $post object.
2347	* @return string\|int\|false Formatted date string or Unix timestamp if `$id` is 'U' or 'G'. False on failure.
2348	*/
2349	function get_the_time( $d = '', $post = null ) {
2350	$post = get_post($post);
2351
2352	if ( ! $post ) {
2353	return false;
2354	}
2355
2356	if ( '' == $d )
2357	$the_time = get_post_time(get_option('time_format'), false, $post, true);
2358	else
2359	$the_time = get_post_time($d, false, $post, true);
2360
2361	/**
2362	* Filters the time a post was written.
2363	*
2364	* @since 1.5.0
2365	*
2366	* @param string $the_time The formatted time.
2367	* @param string $d Format to use for retrieving the time the post was written.
2368	* Accepts 'G', 'U', or php date format value specified
2369	* in 'time_format' option. Default empty.
2370	* @param int\|WP_Post $post WP_Post object or ID.
2371	*/
2372	return apply_filters( 'get_the_time', $the_time, $d, $post );
2373	}
2374
2375	/**
2376	* Retrieve the time at which the post was written.
2377	*
2378	* @since 2.0.0
2379	*
2380	* @param string $d Optional. Format to use for retrieving the time the post
2381	* was written. Either 'G', 'U', or php date format. Default 'U'.
2382	* @param bool $gmt Optional. Whether to retrieve the GMT time. Default false.
2383	* @param int\|WP_Post $post WP_Post object or ID. Default is global $post object.
2384	* @param bool $translate Whether to translate the time string. Default false.
2385	* @return string\|int\|false Formatted date string or Unix timestamp if `$id` is 'U' or 'G'. False on failure.
2386	*/
2387	function get_post_time( $d = 'U', $gmt = false, $post = null, $translate = false ) {
2388	$post = get_post($post);
2389
2390	if ( ! $post ) {
2391	return false;
2392	}
2393
2394	if ( $gmt )
2395	$time = $post->post_date_gmt;
2396	else
2397	$time = $post->post_date;
2398
2399	$time = mysql2date($d, $time, $translate);
2400
2401	/**
2402	* Filters the localized time a post was written.
2403	*
2404	* @since 2.6.0
2405	*
2406	* @param string $time The formatted time.
2407	* @param string $d Format to use for retrieving the time the post was written.
2408	* Accepts 'G', 'U', or php date format. Default 'U'.
2409	* @param bool $gmt Whether to retrieve the GMT time. Default false.
2410	*/
2411	return apply_filters( 'get_post_time', $time, $d, $gmt );
2412	}
2413
2414	/**
2415	* Display the time at which the post was last modified.
2416	*
2417	* @since 2.0.0
2418	*
2419	* @param string $d Optional Either 'G', 'U', or php date format defaults to the value specified in the time_format option.
2420	*/
2421	function the_modified_time($d = '') {
2422	/**
2423	* Filters the localized time a post was last modified, for display.
2424	*
2425	* @since 2.0.0
2426	*
2427	* @param string $get_the_modified_time The formatted time.
2428	* @param string $d The time format. Accepts 'G', 'U',
2429	* or php date format. Defaults to value
2430	* specified in 'time_format' option.
2431	*/
2432	echo apply_filters( 'the_modified_time', get_the_modified_time($d), $d );
2433	}
2434
2435	/**
2436	* Retrieve the time at which the post was last modified.
2437	*
2438	* @since 2.0.0
2439	* @since 4.6.0 Added the `$post` parameter.
2440	*
2441	* @param string $d Optional. Format to use for retrieving the time the post
2442	* was modified. Either 'G', 'U', or php date format defaults
2443	* to the value specified in the time_format option. Default empty.
2444	* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
2445	* @return false\|string Formatted date string or Unix timestamp. False on failure.
2446	*/
2447	function get_the_modified_time( $d = '', $post = null ) {
2448	$post = get_post( $post );
2449
2450	if ( ! $post ) {
2451	// For backward compatibility, failures go through the filter below.
2452	$the_time = false;
2453	} elseif ( empty( $d ) ) {
2454	$the_time = get_post_modified_time( get_option( 'time_format' ), false, $post, true );
2455	} else {
2456	$the_time = get_post_modified_time( $d, false, $post, true );
2457	}
2458
2459	/**
2460	* Filters the localized time a post was last modified.
2461	*
2462	* @since 2.0.0
2463	* @since 4.6.0 Added the `$post` parameter.
2464	*
2465	* @param string $the_time The formatted time.
2466	* @param string $d Format to use for retrieving the time the post was
2467	* written. Accepts 'G', 'U', or php date format. Defaults
2468	* to value specified in 'time_format' option.
2469	* @param WP_Post $post WP_Post object.
2470	*/
2471	return apply_filters( 'get_the_modified_time', $the_time, $d, $post );
2472	}
2473
2474	/**
2475	* Retrieve the time at which the post was last modified.
2476	*
2477	* @since 2.0.0
2478	*
2479	* @param string $d Optional. Format to use for retrieving the time the post
2480	* was modified. Either 'G', 'U', or php date format. Default 'U'.
2481	* @param bool $gmt Optional. Whether to retrieve the GMT time. Default false.
2482	* @param int\|WP_Post $post WP_Post object or ID. Default is global $post object.
2483	* @param bool $translate Whether to translate the time string. Default false.
2484	* @return string\|int\|false Formatted date string or Unix timestamp if `$id` is 'U' or 'G'. False on failure.
2485	*/
2486	function get_post_modified_time( $d = 'U', $gmt = false, $post = null, $translate = false ) {
2487	$post = get_post($post);
2488
2489	if ( ! $post ) {
2490	return false;
2491	}
2492
2493	if ( $gmt )
2494	$time = $post->post_modified_gmt;
2495	else
2496	$time = $post->post_modified;
2497	$time = mysql2date($d, $time, $translate);
2498
2499	/**
2500	* Filters the localized time a post was last modified.
2501	*
2502	* @since 2.8.0
2503	*
2504	* @param string $time The formatted time.
2505	* @param string $d The date format. Accepts 'G', 'U', or php date format. Default 'U'.
2506	* @param bool $gmt Whether to return the GMT time. Default false.
2507	*/
2508	return apply_filters( 'get_post_modified_time', $time, $d, $gmt );
2509	}
2510
2511	/**
2512	* Display the weekday on which the post was written.
2513	*
2514	* @since 0.71
2515	*
2516	* @global WP_Locale $wp_locale
2517	*/
2518	function the_weekday() {
2519	global $wp_locale;
2520	$the_weekday = $wp_locale->get_weekday( mysql2date( 'w', get_post()->post_date, false ) );
2521
2522	/**
2523	* Filters the weekday on which the post was written, for display.
2524	*
2525	* @since 0.71
2526	*
2527	* @param string $the_weekday
2528	*/
2529	echo apply_filters( 'the_weekday', $the_weekday );
2530	}
2531
2532	/**
2533	* Display the weekday on which the post was written.
2534	*
2535	* Will only output the weekday if the current post's weekday is different from
2536	* the previous one output.
2537	*
2538	* @since 0.71
2539	*
2540	* @global WP_Locale $wp_locale
2541	* @global string\|int\|bool $currentday
2542	* @global string\|int\|bool $previousweekday
2543	*
2544	* @param string $before Optional Output before the date.
2545	* @param string $after Optional Output after the date.
2546	*/
2547	function the_weekday_date($before='',$after='') {
2548	global $wp_locale, $currentday, $previousweekday;
2549	$the_weekday_date = '';
2550	if ( $currentday != $previousweekday ) {
2551	$the_weekday_date .= $before;
2552	$the_weekday_date .= $wp_locale->get_weekday( mysql2date( 'w', get_post()->post_date, false ) );
2553	$the_weekday_date .= $after;
2554	$previousweekday = $currentday;
2555	}
2556
2557	/**
2558	* Filters the localized date on which the post was written, for display.
2559	*
2560	* @since 0.71
2561	*
2562	* @param string $the_weekday_date
2563	* @param string $before The HTML to output before the date.
2564	* @param string $after The HTML to output after the date.
2565	*/
2566	$the_weekday_date = apply_filters( 'the_weekday_date', $the_weekday_date, $before, $after );
2567	echo $the_weekday_date;
2568	}
2569
2570	/**
2571	* Fire the wp_head action.
2572	*
2573	* See {@see 'wp_head'}.
2574	*
2575	* @since 1.2.0
2576	*/
2577	function wp_head() {
2578	/**
2579	* Prints scripts or data in the head tag on the front end.
2580	*
2581	* @since 1.5.0
2582	*/
2583	do_action( 'wp_head' );
2584	}
2585
2586	/**
2587	* Fire the wp_footer action.
2588	*
2589	* See {@see 'wp_footer'}.
2590	*
2591	* @since 1.5.1
2592	*/
2593	function wp_footer() {
2594	/**
2595	* Prints scripts or data before the closing body tag on the front end.
2596	*
2597	* @since 1.5.1
2598	*/
2599	do_action( 'wp_footer' );
2600	}
2601
2602	/**
2603	* Display the links to the general feeds.
2604	*
2605	* @since 2.8.0
2606	*
2607	* @param array $args Optional arguments.
2608	*/
2609	function feed_links( $args = array() ) {
2610	if ( !current_theme_supports('automatic-feed-links') )
2611	return;
2612
2613	$defaults = array(
2614	/* translators: Separator between blog name and feed type in feed links */
2615	'separator' => _x('»', 'feed link'),
2616	/* translators: 1: blog title, 2: separator (raquo) */
2617	'feedtitle' => __('%1$s %2$s Feed'),
2618	/* translators: 1: blog title, 2: separator (raquo) */
2619	'comstitle' => __('%1$s %2$s Comments Feed'),
2620	);
2621
2622	$args = wp_parse_args( $args, $defaults );
2623
2624	/**
2625	* Filters whether to display the posts feed link.
2626	*
2627	* @since 4.4.0
2628	*
2629	* @param bool $show Whether to display the posts feed link. Default true.
2630	*/
2631	if ( apply_filters( 'feed_links_show_posts_feed', true ) ) {
2632	echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr( sprintf( $args['feedtitle'], get_bloginfo( 'name' ), $args['separator'] ) ) . '" href="' . esc_url( get_feed_link() ) . "\" />\n";
2633	}
2634
2635	/**
2636	* Filters whether to display the comments feed link.
2637	*
2638	* @since 4.4.0
2639	*
2640	* @param bool $show Whether to display the comments feed link. Default true.
2641	*/
2642	if ( apply_filters( 'feed_links_show_comments_feed', true ) ) {
2643	echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr( sprintf( $args['comstitle'], get_bloginfo( 'name' ), $args['separator'] ) ) . '" href="' . esc_url( get_feed_link( 'comments_' . get_default_feed() ) ) . "\" />\n";
2644	}
2645	}
2646
2647	/**
2648	* Display the links to the extra feeds such as category feeds.
2649	*
2650	* @since 2.8.0
2651	*
2652	* @param array $args Optional arguments.
2653	*/
2654	function feed_links_extra( $args = array() ) {
2655	$defaults = array(
2656	/* translators: Separator between blog name and feed type in feed links */
2657	'separator' => _x('»', 'feed link'),
2658	/* translators: 1: blog name, 2: separator(raquo), 3: post title */
2659	'singletitle' => __('%1$s %2$s %3$s Comments Feed'),
2660	/* translators: 1: blog name, 2: separator(raquo), 3: category name */
2661	'cattitle' => __('%1$s %2$s %3$s Category Feed'),
2662	/* translators: 1: blog name, 2: separator(raquo), 3: tag name */
2663	'tagtitle' => __('%1$s %2$s %3$s Tag Feed'),
2664	/* translators: 1: blog name, 2: separator(raquo), 3: term name, 4: taxonomy singular name */
2665	'taxtitle' => __('%1$s %2$s %3$s %4$s Feed'),
2666	/* translators: 1: blog name, 2: separator(raquo), 3: author name */
2667	'authortitle' => __('%1$s %2$s Posts by %3$s Feed'),
2668	/* translators: 1: blog name, 2: separator(raquo), 3: search phrase */
2669	'searchtitle' => __('%1$s %2$s Search Results for “%3$s” Feed'),
2670	/* translators: 1: blog name, 2: separator(raquo), 3: post type name */
2671	'posttypetitle' => __('%1$s %2$s %3$s Feed'),
2672	);
2673
2674	$args = wp_parse_args( $args, $defaults );
2675
2676	if ( is_singular() ) {
2677	$id = 0;
2678	$post = get_post( $id );
2679
2680	if ( comments_open() \|\| pings_open() \|\| $post->comment_count > 0 ) {
2681	$title = sprintf( $args['singletitle'], get_bloginfo('name'), $args['separator'], the_title_attribute( array( 'echo' => false ) ) );
2682	$href = get_post_comments_feed_link( $post->ID );
2683	}
2684	} elseif ( is_post_type_archive() ) {
2685	$post_type = get_query_var( 'post_type' );
2686	if ( is_array( $post_type ) )
2687	$post_type = reset( $post_type );
2688
2689	$post_type_obj = get_post_type_object( $post_type );
2690	$title = sprintf( $args['posttypetitle'], get_bloginfo( 'name' ), $args['separator'], $post_type_obj->labels->name );
2691	$href = get_post_type_archive_feed_link( $post_type_obj->name );
2692	} elseif ( is_category() ) {
2693	$term = get_queried_object();
2694
2695	if ( $term ) {
2696	$title = sprintf( $args['cattitle'], get_bloginfo('name'), $args['separator'], $term->name );
2697	$href = get_category_feed_link( $term->term_id );
2698	}
2699	} elseif ( is_tag() ) {
2700	$term = get_queried_object();
2701
2702	if ( $term ) {
2703	$title = sprintf( $args['tagtitle'], get_bloginfo('name'), $args['separator'], $term->name );
2704	$href = get_tag_feed_link( $term->term_id );
2705	}
2706	} elseif ( is_tax() ) {
2707	$term = get_queried_object();
2708	$tax = get_taxonomy( $term->taxonomy );
2709	$title = sprintf( $args['taxtitle'], get_bloginfo('name'), $args['separator'], $term->name, $tax->labels->singular_name );
2710	$href = get_term_feed_link( $term->term_id, $term->taxonomy );
2711	} elseif ( is_author() ) {
2712	$author_id = intval( get_query_var('author') );
2713
2714	$title = sprintf( $args['authortitle'], get_bloginfo('name'), $args['separator'], get_the_author_meta( 'display_name', $author_id ) );
2715	$href = get_author_feed_link( $author_id );
2716	} elseif ( is_search() ) {
2717	$title = sprintf( $args['searchtitle'], get_bloginfo('name'), $args['separator'], get_search_query( false ) );
2718	$href = get_search_feed_link();
2719	} elseif ( is_post_type_archive() ) {
2720	$title = sprintf( $args['posttypetitle'], get_bloginfo('name'), $args['separator'], post_type_archive_title( '', false ) );
2721	$post_type_obj = get_queried_object();
2722	if ( $post_type_obj )
2723	$href = get_post_type_archive_feed_link( $post_type_obj->name );
2724	}
2725
2726	if ( isset($title) && isset($href) )
2727	echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr( $title ) . '" href="' . esc_url( $href ) . '" />' . "\n";
2728	}
2729
2730	/**
2731	* Display the link to the Really Simple Discovery service endpoint.
2732	*
2733	* @link http://archipelago.phrasewise.com/rsd
2734	* @since 2.0.0
2735	*/
2736	function rsd_link() {
2737	echo '<link rel="EditURI" type="application/rsd+xml" title="RSD" href="' . esc_url( site_url( 'xmlrpc.php?rsd', 'rpc' ) ) . '" />' . "\n";
2738	}
2739
2740	/**
2741	* Display the link to the Windows Live Writer manifest file.
2742	*
2743	* @link https://msdn.microsoft.com/en-us/library/bb463265.aspx
2744	* @since 2.3.1
2745	*/
2746	function wlwmanifest_link() {
2747	echo '<link rel="wlwmanifest" type="application/wlwmanifest+xml" href="',
2748	includes_url( 'wlwmanifest.xml' ), '" /> ', "\n";
2749	}
2750
2751	/**
2752	* Displays a noindex meta tag if required by the blog configuration.
2753	*
2754	* If a blog is marked as not being public then the noindex meta tag will be
2755	* output to tell web robots not to index the page content. Add this to the
2756	* {@see 'wp_head'} action.
2757	*
2758	* Typical usage is as a {@see 'wp_head'} callback:
2759	*
2760	* add_action( 'wp_head', 'noindex' );
2761	*
2762	* @see wp_no_robots
2763	*
2764	* @since 2.1.0
2765	*/
2766	function noindex() {
2767	// If the blog is not public, tell robots to go away.
2768	if ( '0' == get_option('blog_public') )
2769	wp_no_robots();
2770	}
2771
2772	/**
2773	* Display a noindex meta tag.
2774	*
2775	* Outputs a noindex meta tag that tells web robots not to index the page content.
2776	* Typical usage is as a wp_head callback. add_action( 'wp_head', 'wp_no_robots' );
2777	*
2778	* @since 3.3.0
2779	*/
2780	function wp_no_robots() {
2781	echo "<meta name='robots' content='noindex,follow' />\n";
2782	}
2783
2784	/**
2785	* Display site icon meta tags.
2786	*
2787	* @since 4.3.0
2788	*
2789	* @link https://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon HTML5 specification link icon.
2790	*/
2791	function wp_site_icon() {
2792	if ( ! has_site_icon() && ! is_customize_preview() ) {
2793	return;
2794	}
2795
2796	$meta_tags = array();
2797	$icon_32 = get_site_icon_url( 32 );
2798	if ( empty( $icon_32 ) && is_customize_preview() ) {
2799	$icon_32 = '/favicon.ico'; // Serve default favicon URL in customizer so element can be updated for preview.
2800	}
2801	if ( $icon_32 ) {
2802	$meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="32x32" />', esc_url( $icon_32 ) );
2803	}
2804	$icon_192 = get_site_icon_url( 192 );
2805	if ( $icon_192 ) {
2806	$meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="192x192" />', esc_url( $icon_192 ) );
2807	}
2808	$icon_180 = get_site_icon_url( 180 );
2809	if ( $icon_180 ) {
2810	$meta_tags[] = sprintf( '<link rel="apple-touch-icon-precomposed" href="%s" />', esc_url( $icon_180 ) );
2811	}
2812	$icon_270 = get_site_icon_url( 270 );
2813	if ( $icon_270 ) {
2814	$meta_tags[] = sprintf( '<meta name="msapplication-TileImage" content="%s" />', esc_url( $icon_270 ) );
2815	}
2816
2817	/**
2818	* Filters the site icon meta tags, so Plugins can add their own.
2819	*
2820	* @since 4.3.0
2821	*
2822	* @param array $meta_tags Site Icon meta elements.
2823	*/
2824	$meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags );
2825	$meta_tags = array_filter( $meta_tags );
2826
2827	foreach ( $meta_tags as $meta_tag ) {
2828	echo "$meta_tag\n";
2829	}
2830	}
2831
2832	/**
2833	* Prints resource hints to browsers for pre-fetching, pre-rendering
2834	* and pre-connecting to web sites.
2835	*
2836	* Gives hints to browsers to prefetch specific pages or render them
2837	* in the background, to perform DNS lookups or to begin the connection
2838	* handshake (DNS, TCP, TLS) in the background.
2839	*
2840	* These performance improving indicators work by using `<link rel"…">`.
2841	*
2842	* @since 4.6.0
2843	*/
2844	function wp_resource_hints() {
2845	$hints = array(
2846	'dns-prefetch' => wp_dependencies_unique_hosts(),
2847	'preconnect' => array(),
2848	'prefetch' => array(),
2849	'prerender' => array(),
2850	);
2851
2852	/*
2853	* Add DNS prefetch for the Emoji CDN.
2854	* The path is removed in the foreach loop below.
2855	*/
2856	/** This filter is documented in wp-includes/formatting.php */
2857	$hints['dns-prefetch'][] = apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2.2.1/svg/' );
2858
2859	foreach ( $hints as $relation_type => $urls ) {
2860	$unique_urls = array();
2861
2862	/**
2863	* Filters domains and URLs for resource hints of relation type.
2864	*
2865	* @since 4.6.0
2866	*
2867	* @param array $urls URLs to print for resource hints.
2868	* @param string $relation_type The relation type the URLs are printed for, e.g. 'preconnect' or 'prerender'.
2869	*/
2870	$urls = apply_filters( 'wp_resource_hints', $urls, $relation_type );
2871
2872	foreach ( $urls as $key => $url ) {
2873	$atts = array();
2874
2875	if ( is_array( $url ) ) {
2876	if ( isset( $url['href'] ) ) {
2877	$atts = $url;
2878	$url = $url['href'];
2879	} else {
2880	continue;
2881	}
2882	}
2883
2884	$url = esc_url( $url, array( 'http', 'https' ) );
2885
2886	if ( ! $url ) {
2887	continue;
2888	}
2889
2890	if ( isset( $unique_urls[ $url ] ) ) {
2891	continue;
2892	}
2893
2894	if ( in_array( $relation_type, array( 'preconnect', 'dns-prefetch' ) ) ) {
2895	$parsed = wp_parse_url( $url );
2896
2897	if ( empty( $parsed['host'] ) ) {
2898	continue;
2899	}
2900
2901	if ( 'preconnect' === $relation_type && ! empty( $parsed['scheme'] ) ) {
2902	$url = $parsed['scheme'] . '://' . $parsed['host'];
2903	} else {
2904	// Use protocol-relative URLs for dns-prefetch or if scheme is missing.
2905	$url = '//' . $parsed['host'];
2906	}
2907	}
2908
2909	$atts['rel'] = $relation_type;
2910	$atts['href'] = $url;
2911
2912	$unique_urls[ $url ] = $atts;
2913	}
2914
2915	foreach ( $unique_urls as $atts ) {
2916	$html = '';
2917
2918	foreach ( $atts as $attr => $value ) {
2919	if ( ! is_scalar( $value ) \|\|
2920	( ! in_array( $attr, array( 'as', 'crossorigin', 'href', 'pr', 'rel', 'type' ), true ) && ! is_numeric( $attr ))
2921	) {
2922	continue;
2923	}
2924
2925	$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
2926
2927	if ( ! is_string( $attr ) ) {
2928	$html .= " $value";
2929	} else {
2930	$html .= " $attr='$value'";
2931	}
2932	}
2933
2934	$html = trim( $html );
2935
2936	echo "<link $html />\n";
2937	}
2938	}
2939	}
2940
2941	/**
2942	* Retrieves a list of unique hosts of all enqueued scripts and styles.
2943	*
2944	* @since 4.6.0
2945	*
2946	* @return array A list of unique hosts of enqueued scripts and styles.
2947	*/
2948	function wp_dependencies_unique_hosts() {
2949	global $wp_scripts, $wp_styles;
2950
2951	$unique_hosts = array();
2952
2953	foreach ( array( $wp_scripts, $wp_styles ) as $dependencies ) {
2954	if ( $dependencies instanceof WP_Dependencies && ! empty( $dependencies->queue ) ) {
2955	foreach ( $dependencies->queue as $handle ) {
2956	if ( ! isset( $dependencies->registered[ $handle ] ) ) {
2957	continue;
2958	}
2959
2960	/* @var _WP_Dependency $dependency */
2961	$dependency = $dependencies->registered[ $handle ];
2962	$parsed = wp_parse_url( $dependency->src );
2963
2964	if ( ! empty( $parsed['host'] ) && ! in_array( $parsed['host'], $unique_hosts ) && $parsed['host'] !== $_SERVER['SERVER_NAME'] ) {
2965	$unique_hosts[] = $parsed['host'];
2966	}
2967	}
2968	}
2969	}
2970
2971	return $unique_hosts;
2972	}
2973
2974	/**
2975	* Whether the user can access the visual editor.
2976	*
2977	* Checks if the user can access the visual editor and that it's supported by the user's browser.
2978	*
2979	* @since 2.0.0
2980	*
2981	* @global bool $wp_rich_edit Whether the user can access the visual editor.
2982	* @global bool $is_gecko Whether the browser is Gecko-based.
2983	* @global bool $is_opera Whether the browser is Opera.
2984	* @global bool $is_safari Whether the browser is Safari.
2985	* @global bool $is_chrome Whether the browser is Chrome.
2986	* @global bool $is_IE Whether the browser is Internet Explorer.
2987	* @global bool $is_edge Whether the browser is Microsoft Edge.
2988	*
2989	* @return bool True if the user can access the visual editor, false otherwise.
2990	*/
2991	function user_can_richedit() {
2992	global $wp_rich_edit, $is_gecko, $is_opera, $is_safari, $is_chrome, $is_IE, $is_edge;
2993
2994	if ( !isset($wp_rich_edit) ) {
2995	$wp_rich_edit = false;
2996
2997	if ( get_user_option( 'rich_editing' ) == 'true' \|\| ! is_user_logged_in() ) { // default to 'true' for logged out users
2998	if ( $is_safari ) {
2999	$wp_rich_edit = ! wp_is_mobile() \|\| ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && intval( $match[1] ) >= 534 );
3000	} elseif ( $is_gecko \|\| $is_chrome \|\| $is_IE \|\| $is_edge \|\| ( $is_opera && !wp_is_mobile() ) ) {
3001	$wp_rich_edit = true;
3002	}
3003	}
3004	}
3005
3006	/**
3007	* Filters whether the user can access the visual editor.
3008	*
3009	* @since 2.1.0
3010	*
3011	* @param bool $wp_rich_edit Whether the user can access the visual editor.
3012	*/
3013	return apply_filters( 'user_can_richedit', $wp_rich_edit );
3014	}
3015
3016	/**
3017	* Find out which editor should be displayed by default.
3018	*
3019	* Works out which of the two editors to display as the current editor for a
3020	* user. The 'html' setting is for the "Text" editor tab.
3021	*
3022	* @since 2.5.0
3023	*
3024	* @return string Either 'tinymce', or 'html', or 'test'
3025	*/
3026	function wp_default_editor() {
3027	$r = user_can_richedit() ? 'tinymce' : 'html'; // defaults
3028	if ( wp_get_current_user() ) { // look for cookie
3029	$ed = get_user_setting('editor', 'tinymce');
3030	$r = ( in_array($ed, array('tinymce', 'html', 'test') ) ) ? $ed : $r;
3031	}
3032
3033	/**
3034	* Filters which editor should be displayed by default.
3035	*
3036	* @since 2.5.0
3037	*
3038	* @param string $r Which editor should be displayed by default. Either 'tinymce', 'html', or 'test'.
3039	*/
3040	return apply_filters( 'wp_default_editor', $r );
3041	}
3042
3043	/**
3044	* Renders an editor.
3045	*
3046	* Using this function is the proper way to output all needed components for both TinyMCE and Quicktags.
3047	* _WP_Editors should not be used directly. See https://core.trac.wordpress.org/ticket/17144.
3048	*
3049	* NOTE: Once initialized the TinyMCE editor cannot be safely moved in the DOM. For that reason
3050	* running wp_editor() inside of a meta box is not a good idea unless only Quicktags is used.
3051	* On the post edit screen several actions can be used to include additional editors
3052	* containing TinyMCE: 'edit_page_form', 'edit_form_advanced' and 'dbx_post_sidebar'.
3053	* See https://core.trac.wordpress.org/ticket/19173 for more information.
3054	*
3055	* @see _WP_Editors::editor()
3056	* @since 3.3.0
3057	*
3058	* @param string $content Initial content for the editor.
3059	* @param string $editor_id HTML ID attribute value for the textarea and TinyMCE. Can only be /[a-z]+/.
3060	* @param array $settings See _WP_Editors::editor().
3061	*/
3062	function wp_editor( $content, $editor_id, $settings = array() ) {
3063	if ( ! class_exists( '_WP_Editors', false ) )
3064	require( ABSPATH . WPINC . '/class-wp-editor.php' );
3065	_WP_Editors::editor($content, $editor_id, $settings);
3066	}
3067
3068	/**
3069	* Retrieves the contents of the search WordPress query variable.
3070	*
3071	* The search query string is passed through esc_attr() to ensure that it is safe
3072	* for placing in an html attribute.
3073	*
3074	* @since 2.3.0
3075	*
3076	* @param bool $escaped Whether the result is escaped. Default true.
3077	* Only use when you are later escaping it. Do not use unescaped.
3078	* @return string
3079	*/
3080	function get_search_query( $escaped = true ) {
3081	/**
3082	* Filters the contents of the search query variable.
3083	*
3084	* @since 2.3.0
3085	*
3086	* @param mixed $search Contents of the search query variable.
3087	*/
3088	$query = apply_filters( 'get_search_query', get_query_var( 's' ) );
3089
3090	if ( $escaped )
3091	$query = esc_attr( $query );
3092	return $query;
3093	}
3094
3095	/**
3096	* Displays the contents of the search query variable.
3097	*
3098	* The search query string is passed through esc_attr() to ensure that it is safe
3099	* for placing in an html attribute.
3100	*
3101	* @since 2.1.0
3102	*/
3103	function the_search_query() {
3104	/**
3105	* Filters the contents of the search query variable for display.
3106	*
3107	* @since 2.3.0
3108	*
3109	* @param mixed $search Contents of the search query variable.
3110	*/
3111	echo esc_attr( apply_filters( 'the_search_query', get_search_query( false ) ) );
3112	}
3113
3114	/**
3115	* Gets the language attributes for the html tag.
3116	*
3117	* Builds up a set of html attributes containing the text direction and language
3118	* information for the page.
3119	*
3120	* @since 4.3.0
3121	*
3122	* @param string $doctype Optional. The type of html document. Accepts 'xhtml' or 'html'. Default 'html'.
3123	*/
3124	function get_language_attributes( $doctype = 'html' ) {
3125	$attributes = array();
3126
3127	if ( function_exists( 'is_rtl' ) && is_rtl() )
3128	$attributes[] = 'dir="rtl"';
3129
3130	if ( $lang = get_bloginfo('language') ) {
3131	if ( get_option('html_type') == 'text/html' \|\| $doctype == 'html' )
3132	$attributes[] = "lang=\"$lang\"";
3133
3134	if ( get_option('html_type') != 'text/html' \|\| $doctype == 'xhtml' )
3135	$attributes[] = "xml:lang=\"$lang\"";
3136	}
3137
3138	$output = implode(' ', $attributes);
3139
3140	/**
3141	* Filters the language attributes for display in the html tag.
3142	*
3143	* @since 2.5.0
3144	* @since 4.3.0 Added the `$doctype` parameter.
3145	*
3146	* @param string $output A space-separated list of language attributes.
3147	* @param string $doctype The type of html document (xhtml\|html).
3148	*/
3149	return apply_filters( 'language_attributes', $output, $doctype );
3150	}
3151
3152	/**
3153	* Displays the language attributes for the html tag.
3154	*
3155	* Builds up a set of html attributes containing the text direction and language
3156	* information for the page.
3157	*
3158	* @since 2.1.0
3159	* @since 4.3.0 Converted into a wrapper for get_language_attributes().
3160	*
3161	* @param string $doctype Optional. The type of html document. Accepts 'xhtml' or 'html'. Default 'html'.
3162	*/
3163	function language_attributes( $doctype = 'html' ) {
3164	echo get_language_attributes( $doctype );
3165	}
3166
3167	/**
3168	* Retrieve paginated link for archive post pages.
3169	*
3170	* Technically, the function can be used to create paginated link list for any
3171	* area. The 'base' argument is used to reference the url, which will be used to
3172	* create the paginated links. The 'format' argument is then used for replacing
3173	* the page number. It is however, most likely and by default, to be used on the
3174	* archive post pages.
3175	*
3176	* The 'type' argument controls format of the returned value. The default is
3177	* 'plain', which is just a string with the links separated by a newline
3178	* character. The other possible values are either 'array' or 'list'. The
3179	* 'array' value will return an array of the paginated link list to offer full
3180	* control of display. The 'list' value will place all of the paginated links in
3181	* an unordered HTML list.
3182	*
3183	* The 'total' argument is the total amount of pages and is an integer. The
3184	* 'current' argument is the current page number and is also an integer.
3185	*
3186	* An example of the 'base' argument is "http://example.com/all_posts.php%_%"
3187	* and the '%_%' is required. The '%_%' will be replaced by the contents of in
3188	* the 'format' argument. An example for the 'format' argument is "?page=%#%"
3189	* and the '%#%' is also required. The '%#%' will be replaced with the page
3190	* number.
3191	*
3192	* You can include the previous and next links in the list by setting the
3193	* 'prev_next' argument to true, which it is by default. You can set the
3194	* previous text, by using the 'prev_text' argument. You can set the next text
3195	* by setting the 'next_text' argument.
3196	*
3197	* If the 'show_all' argument is set to true, then it will show all of the pages
3198	* instead of a short list of the pages near the current page. By default, the
3199	* 'show_all' is set to false and controlled by the 'end_size' and 'mid_size'
3200	* arguments. The 'end_size' argument is how many numbers on either the start
3201	* and the end list edges, by default is 1. The 'mid_size' argument is how many
3202	* numbers to either side of current page, but not including current page.
3203	*
3204	* It is possible to add query vars to the link by using the 'add_args' argument
3205	* and see add_query_arg() for more information.
3206	*
3207	* The 'before_page_number' and 'after_page_number' arguments allow users to
3208	* augment the links themselves. Typically this might be to add context to the
3209	* numbered links so that screen reader users understand what the links are for.
3210	* The text strings are added before and after the page number - within the
3211	* anchor tag.
3212	*
3213	* @since 2.1.0
3214	*
3215	* @global WP_Query $wp_query
3216	* @global WP_Rewrite $wp_rewrite
3217	*
3218	* @param string\|array $args {
3219	* Optional. Array or string of arguments for generating paginated links for archives.
3220	*
3221	* @type string $base Base of the paginated url. Default empty.
3222	* @type string $format Format for the pagination structure. Default empty.
3223	* @type int $total The total amount of pages. Default is the value WP_Query's
3224	* `max_num_pages` or 1.
3225	* @type int $current The current page number. Default is 'paged' query var or 1.
3226	* @type bool $show_all Whether to show all pages. Default false.
3227	* @type int $end_size How many numbers on either the start and the end list edges.
3228	* Default 1.
3229	* @type int $mid_size How many numbers to either side of the current pages. Default 2.
3230	* @type bool $prev_next Whether to include the previous and next links in the list. Default true.
3231	* @type bool $prev_text The previous page text. Default '« Previous'.
3232	* @type bool $next_text The next page text. Default 'Next »'.
3233	* @type string $type Controls format of the returned value. Possible values are 'plain',
3234	* 'array' and 'list'. Default is 'plain'.
3235	* @type array $add_args An array of query args to add. Default false.
3236	* @type string $add_fragment A string to append to each link. Default empty.
3237	* @type string $before_page_number A string to appear before the page number. Default empty.
3238	* @type string $after_page_number A string to append after the page number. Default empty.
3239	* }
3240	* @return array\|string\|void String of page links or array of page links.
3241	*/
3242	function paginate_links( $args = '' ) {
3243	global $wp_query, $wp_rewrite;
3244
3245	// Setting up default values based on the current URL.
3246	$pagenum_link = html_entity_decode( get_pagenum_link() );
3247	$url_parts = explode( '?', $pagenum_link );
3248
3249	// Get max pages and current page out of the current query, if available.
3250	$total = isset( $wp_query->max_num_pages ) ? $wp_query->max_num_pages : 1;
3251	$current = get_query_var( 'paged' ) ? intval( get_query_var( 'paged' ) ) : 1;
3252
3253	// Append the format placeholder to the base URL.
3254	$pagenum_link = trailingslashit( $url_parts[0] ) . '%_%';
3255
3256	// URL base depends on permalink settings.
3257	$format = $wp_rewrite->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
3258	$format .= $wp_rewrite->using_permalinks() ? user_trailingslashit( $wp_rewrite->pagination_base . '/%#%', 'paged' ) : '?paged=%#%';
3259
3260	$defaults = array(
3261	'base' => $pagenum_link, // http://example.com/all_posts.php%_% : %_% is replaced by format (below)
3262	'format' => $format, // ?page=%#% : %#% is replaced by the page number
3263	'total' => $total,
3264	'current' => $current,
3265	'show_all' => false,
3266	'prev_next' => true,
3267	'prev_text' => __('« Previous'),
3268	'next_text' => __('Next »'),
3269	'end_size' => 1,
3270	'mid_size' => 2,
3271	'type' => 'plain',
3272	'add_args' => array(), // array of query args to add
3273	'add_fragment' => '',
3274	'before_page_number' => '',
3275	'after_page_number' => ''
3276	);
3277
3278	$args = wp_parse_args( $args, $defaults );
3279
3280	if ( ! is_array( $args['add_args'] ) ) {
3281	$args['add_args'] = array();
3282	}
3283
3284	// Merge additional query vars found in the original URL into 'add_args' array.
3285	if ( isset( $url_parts[1] ) ) {
3286	// Find the format argument.
3287	$format = explode( '?', str_replace( '%_%', $args['format'], $args['base'] ) );
3288	$format_query = isset( $format[1] ) ? $format[1] : '';
3289	wp_parse_str( $format_query, $format_args );
3290
3291	// Find the query args of the requested URL.
3292	wp_parse_str( $url_parts[1], $url_query_args );
3293
3294	// Remove the format argument from the array of query arguments, to avoid overwriting custom format.
3295	foreach ( $format_args as $format_arg => $format_arg_value ) {
3296	unset( $url_query_args[ $format_arg ] );
3297	}
3298
3299	$args['add_args'] = array_merge( $args['add_args'], urlencode_deep( $url_query_args ) );
3300	}
3301
3302	// Who knows what else people pass in $args
3303	$total = (int) $args['total'];
3304	if ( $total < 2 ) {
3305	return;
3306	}
3307	$current = (int) $args['current'];
3308	$end_size = (int) $args['end_size']; // Out of bounds? Make it the default.
3309	if ( $end_size < 1 ) {
3310	$end_size = 1;
3311	}
3312	$mid_size = (int) $args['mid_size'];
3313	if ( $mid_size < 0 ) {
3314	$mid_size = 2;
3315	}
3316	$add_args = $args['add_args'];
3317	$r = '';
3318	$page_links = array();
3319	$dots = false;
3320
3321	if ( $args['prev_next'] && $current && 1 < $current ) :
3322	$link = str_replace( '%_%', 2 == $current ? '' : $args['format'], $args['base'] );
3323	$link = str_replace( '%#%', $current - 1, $link );
3324	if ( $add_args )
3325	$link = add_query_arg( $add_args, $link );
3326	$link .= $args['add_fragment'];
3327
3328	/**
3329	* Filters the paginated links for the given archive pages.
3330	*
3331	* @since 3.0.0
3332	*
3333	* @param string $link The paginated link URL.
3334	*/
3335	$page_links[] = '<a class="prev page-numbers" href="' . esc_url( apply_filters( 'paginate_links', $link ) ) . '">' . $args['prev_text'] . '</a>';
3336	endif;
3337	for ( $n = 1; $n <= $total; $n++ ) :
3338	if ( $n == $current ) :
3339	$page_links[] = "<span class='page-numbers current'>" . $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number'] . "</span>";
3340	$dots = true;
3341	else :
3342	if ( $args['show_all'] \|\| ( $n <= $end_size \|\| ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) \|\| $n > $total - $end_size ) ) :
3343	$link = str_replace( '%_%', 1 == $n ? '' : $args['format'], $args['base'] );
3344	$link = str_replace( '%#%', $n, $link );
3345	if ( $add_args )
3346	$link = add_query_arg( $add_args, $link );
3347	$link .= $args['add_fragment'];
3348
3349	/** This filter is documented in wp-includes/general-template.php */
3350	$page_links[] = "<a class='page-numbers' href='" . esc_url( apply_filters( 'paginate_links', $link ) ) . "'>" . $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number'] . "</a>";
3351	$dots = true;
3352	elseif ( $dots && ! $args['show_all'] ) :
3353	$page_links[] = '<span class="page-numbers dots">' . __( '…' ) . '</span>';
3354	$dots = false;
3355	endif;
3356	endif;
3357	endfor;
3358	if ( $args['prev_next'] && $current && $current < $total ) :
3359	$link = str_replace( '%_%', $args['format'], $args['base'] );
3360	$link = str_replace( '%#%', $current + 1, $link );
3361	if ( $add_args )
3362	$link = add_query_arg( $add_args, $link );
3363	$link .= $args['add_fragment'];
3364
3365	/** This filter is documented in wp-includes/general-template.php */
3366	$page_links[] = '<a class="next page-numbers" href="' . esc_url( apply_filters( 'paginate_links', $link ) ) . '">' . $args['next_text'] . '</a>';
3367	endif;
3368	switch ( $args['type'] ) {
3369	case 'array' :
3370	return $page_links;
3371
3372	case 'list' :
3373	$r .= "<ul class='page-numbers'>\n\t<li>";
3374	$r .= join("</li>\n\t<li>", $page_links);
3375	$r .= "</li>\n</ul>\n";
3376	break;
3377
3378	default :
3379	$r = join("\n", $page_links);
3380	break;
3381	}
3382	return $r;
3383	}
3384
3385	/**
3386	* Registers an admin colour scheme css file.
3387	*
3388	* Allows a plugin to register a new admin colour scheme. For example:
3389	*
3390	* wp_admin_css_color( 'classic', __( 'Classic' ), admin_url( "css/colors-classic.css" ), array(
3391	* '#07273E', '#14568A', '#D54E21', '#2683AE'
3392	* ) );
3393	*
3394	* @since 2.5.0
3395	*
3396	* @global array $_wp_admin_css_colors
3397	*
3398	* @param string $key The unique key for this theme.
3399	* @param string $name The name of the theme.
3400	* @param string $url The URL of the CSS file containing the color scheme.
3401	* @param array $colors Optional. An array of CSS color definition strings which are used
3402	* to give the user a feel for the theme.
3403	* @param array $icons {
3404	* Optional. CSS color definitions used to color any SVG icons.
3405	*
3406	* @type string $base SVG icon base color.
3407	* @type string $focus SVG icon color on focus.
3408	* @type string $current SVG icon color of current admin menu link.
3409	* }
3410	*/
3411	function wp_admin_css_color( $key, $name, $url, $colors = array(), $icons = array() ) {
3412	global $_wp_admin_css_colors;
3413
3414	if ( !isset($_wp_admin_css_colors) )
3415	$_wp_admin_css_colors = array();
3416
3417	$_wp_admin_css_colors[$key] = (object) array(
3418	'name' => $name,
3419	'url' => $url,
3420	'colors' => $colors,
3421	'icon_colors' => $icons,
3422	);
3423	}
3424
3425	/**
3426	* Registers the default Admin color schemes
3427	*
3428	* @since 3.0.0
3429	*/
3430	function register_admin_color_schemes() {
3431	$suffix = is_rtl() ? '-rtl' : '';
3432	$suffix .= SCRIPT_DEBUG ? '' : '.min';
3433
3434	wp_admin_css_color( 'fresh', _x( 'Default', 'admin color scheme' ),
3435	false,
3436	array( '#222', '#333', '#0073aa', '#00a0d2' ),
3437	array( 'base' => '#82878c', 'focus' => '#00a0d2', 'current' => '#fff' )
3438	);
3439
3440	// Other color schemes are not available when running out of src
3441	if ( false !== strpos( get_bloginfo( 'version' ), '-src' ) ) {
3442	return;
3443	}
3444
3445	wp_admin_css_color( 'light', _x( 'Light', 'admin color scheme' ),
3446	admin_url( "css/colors/light/colors$suffix.css" ),
3447	array( '#e5e5e5', '#999', '#d64e07', '#04a4cc' ),
3448	array( 'base' => '#999', 'focus' => '#ccc', 'current' => '#ccc' )
3449	);
3450
3451	wp_admin_css_color( 'blue', _x( 'Blue', 'admin color scheme' ),
3452	admin_url( "css/colors/blue/colors$suffix.css" ),
3453	array( '#096484', '#4796b3', '#52accc', '#74B6CE' ),
3454	array( 'base' => '#e5f8ff', 'focus' => '#fff', 'current' => '#fff' )
3455	);
3456
3457	wp_admin_css_color( 'midnight', _x( 'Midnight', 'admin color scheme' ),
3458	admin_url( "css/colors/midnight/colors$suffix.css" ),
3459	array( '#25282b', '#363b3f', '#69a8bb', '#e14d43' ),
3460	array( 'base' => '#f1f2f3', 'focus' => '#fff', 'current' => '#fff' )
3461	);
3462
3463	wp_admin_css_color( 'sunrise', _x( 'Sunrise', 'admin color scheme' ),
3464	admin_url( "css/colors/sunrise/colors$suffix.css" ),
3465	array( '#b43c38', '#cf4944', '#dd823b', '#ccaf0b' ),
3466	array( 'base' => '#f3f1f1', 'focus' => '#fff', 'current' => '#fff' )
3467	);
3468
3469	wp_admin_css_color( 'ectoplasm', _x( 'Ectoplasm', 'admin color scheme' ),
3470	admin_url( "css/colors/ectoplasm/colors$suffix.css" ),
3471	array( '#413256', '#523f6d', '#a3b745', '#d46f15' ),
3472	array( 'base' => '#ece6f6', 'focus' => '#fff', 'current' => '#fff' )
3473	);
3474
3475	wp_admin_css_color( 'ocean', _x( 'Ocean', 'admin color scheme' ),
3476	admin_url( "css/colors/ocean/colors$suffix.css" ),
3477	array( '#627c83', '#738e96', '#9ebaa0', '#aa9d88' ),
3478	array( 'base' => '#f2fcff', 'focus' => '#fff', 'current' => '#fff' )
3479	);
3480
3481	wp_admin_css_color( 'coffee', _x( 'Coffee', 'admin color scheme' ),
3482	admin_url( "css/colors/coffee/colors$suffix.css" ),
3483	array( '#46403c', '#59524c', '#c7a589', '#9ea476' ),
3484	array( 'base' => '#f3f2f1', 'focus' => '#fff', 'current' => '#fff' )
3485	);
3486
3487	}
3488
3489	/**
3490	* Displays the URL of a WordPress admin CSS file.
3491	*
3492	* @see WP_Styles::_css_href and its {@see 'style_loader_src'} filter.
3493	*
3494	* @since 2.3.0
3495	*
3496	* @param string $file file relative to wp-admin/ without its ".css" extension.
3497	* @return string
3498	*/
3499	function wp_admin_css_uri( $file = 'wp-admin' ) {
3500	if ( defined('WP_INSTALLING') ) {
3501	$_file = "./$file.css";
3502	} else {
3503	$_file = admin_url("$file.css");
3504	}
3505	$_file = add_query_arg( 'version', get_bloginfo( 'version' ), $_file );
3506
3507	/**
3508	* Filters the URI of a WordPress admin CSS file.
3509	*
3510	* @since 2.3.0
3511	*
3512	* @param string $_file Relative path to the file with query arguments attached.
3513	* @param string $file Relative path to the file, minus its ".css" extension.
3514	*/
3515	return apply_filters( 'wp_admin_css_uri', $_file, $file );
3516	}
3517
3518	/**
3519	* Enqueues or directly prints a stylesheet link to the specified CSS file.
3520	*
3521	* "Intelligently" decides to enqueue or to print the CSS file. If the
3522	* {@see 'wp_print_styles'} action has not yet been called, the CSS file will be
3523	* enqueued. If the {@see 'wp_print_styles'} action has been called, the CSS link will
3524	* be printed. Printing may be forced by passing true as the $force_echo
3525	* (second) parameter.
3526	*
3527	* For backward compatibility with WordPress 2.3 calling method: If the $file
3528	* (first) parameter does not correspond to a registered CSS file, we assume
3529	* $file is a file relative to wp-admin/ without its ".css" extension. A
3530	* stylesheet link to that generated URL is printed.
3531	*
3532	* @since 2.3.0
3533	*
3534	* @param string $file Optional. Style handle name or file name (without ".css" extension) relative
3535	* to wp-admin/. Defaults to 'wp-admin'.
3536	* @param bool $force_echo Optional. Force the stylesheet link to be printed rather than enqueued.
3537	*/
3538	function wp_admin_css( $file = 'wp-admin', $force_echo = false ) {
3539	// For backward compatibility
3540	$handle = 0 === strpos( $file, 'css/' ) ? substr( $file, 4 ) : $file;
3541
3542	if ( wp_styles()->query( $handle ) ) {
3543	if ( $force_echo \|\| did_action( 'wp_print_styles' ) ) // we already printed the style queue. Print this one immediately
3544	wp_print_styles( $handle );
3545	else // Add to style queue
3546	wp_enqueue_style( $handle );
3547	return;
3548	}
3549
3550	/**
3551	* Filters the stylesheet link to the specified CSS file.
3552	*
3553	* If the site is set to display right-to-left, the RTL stylesheet link
3554	* will be used instead.
3555	*
3556	* @since 2.3.0
3557	*
3558	* @param string $file Style handle name or filename (without ".css" extension)
3559	* relative to wp-admin/. Defaults to 'wp-admin'.
3560	*/
3561	echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( $file ) ) . "' type='text/css' />\n", $file );
3562
3563	if ( function_exists( 'is_rtl' ) && is_rtl() ) {
3564	/** This filter is documented in wp-includes/general-template.php */
3565	echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( "$file-rtl" ) ) . "' type='text/css' />\n", "$file-rtl" );
3566	}
3567	}
3568
3569	/**
3570	* Enqueues the default ThickBox js and css.
3571	*
3572	* If any of the settings need to be changed, this can be done with another js
3573	* file similar to media-upload.js. That file should
3574	* require array('thickbox') to ensure it is loaded after.
3575	*
3576	* @since 2.5.0
3577	*/
3578	function add_thickbox() {
3579	wp_enqueue_script( 'thickbox' );
3580	wp_enqueue_style( 'thickbox' );
3581
3582	if ( is_network_admin() )
3583	add_action( 'admin_head', '_thickbox_path_admin_subfolder' );
3584	}
3585
3586	/**
3587	* Displays the XHTML generator that is generated on the wp_head hook.
3588	*
3589	* See {@see 'wp_head'}.
3590	*
3591	* @since 2.5.0
3592	*/
3593	function wp_generator() {
3594	/**
3595	* Filters the output of the XHTML generator tag.
3596	*
3597	* @since 2.5.0
3598	*
3599	* @param string $generator_type The XHTML generator.
3600	*/
3601	the_generator( apply_filters( 'wp_generator_type', 'xhtml' ) );
3602	}
3603
3604	/**
3605	* Display the generator XML or Comment for RSS, ATOM, etc.
3606	*
3607	* Returns the correct generator type for the requested output format. Allows
3608	* for a plugin to filter generators overall the {@see 'the_generator'} filter.
3609	*
3610	* @since 2.5.0
3611	*
3612	* @param string $type The type of generator to output - (html\|xhtml\|atom\|rss2\|rdf\|comment\|export).
3613	*/
3614	function the_generator( $type ) {
3615	/**
3616	* Filters the output of the XHTML generator tag for display.
3617	*
3618	* @since 2.5.0
3619	*
3620	* @param string $generator_type The generator output.
3621	* @param string $type The type of generator to output. Accepts 'html',
3622	* 'xhtml', 'atom', 'rss2', 'rdf', 'comment', 'export'.
3623	*/
3624	echo apply_filters( 'the_generator', get_the_generator($type), $type ) . "\n";
3625	}
3626
3627	/**
3628	* Creates the generator XML or Comment for RSS, ATOM, etc.
3629	*
3630	* Returns the correct generator type for the requested output format. Allows
3631	* for a plugin to filter generators on an individual basis using the
3632	* {@see 'get_the_generator_$type'} filter.
3633	*
3634	* @since 2.5.0
3635	*
3636	* @param string $type The type of generator to return - (html\|xhtml\|atom\|rss2\|rdf\|comment\|export).
3637	* @return string\|void The HTML content for the generator.
3638	*/
3639	function get_the_generator( $type = '' ) {
3640	if ( empty( $type ) ) {
3641
3642	$current_filter = current_filter();
3643	if ( empty( $current_filter ) )
3644	return;
3645
3646	switch ( $current_filter ) {
3647	case 'rss2_head' :
3648	case 'commentsrss2_head' :
3649	$type = 'rss2';
3650	break;
3651	case 'rss_head' :
3652	case 'opml_head' :
3653	$type = 'comment';
3654	break;
3655	case 'rdf_header' :
3656	$type = 'rdf';
3657	break;
3658	case 'atom_head' :
3659	case 'comments_atom_head' :
3660	case 'app_head' :
3661	$type = 'atom';
3662	break;
3663	}
3664	}
3665
3666	switch ( $type ) {
3667	case 'html':
3668	$gen = '<meta name="generator" content="WordPress ' . get_bloginfo( 'version' ) . '">';
3669	break;
3670	case 'xhtml':
3671	$gen = '<meta name="generator" content="WordPress ' . get_bloginfo( 'version' ) . '" />';
3672	break;
3673	case 'atom':
3674	$gen = '<generator uri="https://wordpress.org/" version="' . get_bloginfo_rss( 'version' ) . '">WordPress</generator>';
3675	break;
3676	case 'rss2':
3677	$gen = '<generator>https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) . '</generator>';
3678	break;
3679	case 'rdf':
3680	$gen = '<admin:generatorAgent rdf:resource="https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) . '" />';
3681	break;
3682	case 'comment':
3683	$gen = '<!-- generator="WordPress/' . get_bloginfo( 'version' ) . '" -->';
3684	break;
3685	case 'export':
3686	$gen = '<!-- generator="WordPress/' . get_bloginfo_rss('version') . '" created="'. date('Y-m-d H:i') . '" -->';
3687	break;
3688	}
3689
3690	/**
3691	* Filters the HTML for the retrieved generator type.
3692	*
3693	* The dynamic portion of the hook name, `$type`, refers to the generator type.
3694	*
3695	* @since 2.5.0
3696	*
3697	* @param string $gen The HTML markup output to wp_head().
3698	* @param string $type The type of generator. Accepts 'html', 'xhtml', 'atom',
3699	* 'rss2', 'rdf', 'comment', 'export'.
3700	*/
3701	return apply_filters( "get_the_generator_{$type}", $gen, $type );
3702	}
3703
3704	/**
3705	* Outputs the html checked attribute.
3706	*
3707	* Compares the first two arguments and if identical marks as checked
3708	*
3709	* @since 1.0.0
3710	*
3711	* @param mixed $checked One of the values to compare
3712	* @param mixed $current (true) The other value to compare if not just true
3713	* @param bool $echo Whether to echo or just return the string
3714	* @return string html attribute or empty string
3715	*/
3716	function checked( $checked, $current = true, $echo = true ) {
3717	return __checked_selected_helper( $checked, $current, $echo, 'checked' );
3718	}
3719
3720	/**
3721	* Outputs the html selected attribute.
3722	*
3723	* Compares the first two arguments and if identical marks as selected
3724	*
3725	* @since 1.0.0
3726	*
3727	* @param mixed $selected One of the values to compare
3728	* @param mixed $current (true) The other value to compare if not just true
3729	* @param bool $echo Whether to echo or just return the string
3730	* @return string html attribute or empty string
3731	*/
3732	function selected( $selected, $current = true, $echo = true ) {
3733	return __checked_selected_helper( $selected, $current, $echo, 'selected' );
3734	}
3735
3736	/**
3737	* Outputs the html disabled attribute.
3738	*
3739	* Compares the first two arguments and if identical marks as disabled
3740	*
3741	* @since 3.0.0
3742	*
3743	* @param mixed $disabled One of the values to compare
3744	* @param mixed $current (true) The other value to compare if not just true
3745	* @param bool $echo Whether to echo or just return the string
3746	* @return string html attribute or empty string
3747	*/
3748	function disabled( $disabled, $current = true, $echo = true ) {
3749	return __checked_selected_helper( $disabled, $current, $echo, 'disabled' );
3750	}
3751
3752	/**
3753	* Private helper function for checked, selected, and disabled.
3754	*
3755	* Compares the first two arguments and if identical marks as $type
3756	*
3757	* @since 2.8.0
3758	* @access private
3759	*
3760	* @param mixed $helper One of the values to compare
3761	* @param mixed $current (true) The other value to compare if not just true
3762	* @param bool $echo Whether to echo or just return the string
3763	* @param string $type The type of checked\|selected\|disabled we are doing
3764	* @return string html attribute or empty string
3765	*/
3766	function __checked_selected_helper( $helper, $current, $echo, $type ) {
3767	if ( (string) $helper === (string) $current )
3768	$result = " $type='$type'";
3769	else
3770	$result = '';
3771
3772	if ( $echo )
3773	echo $result;
3774
3775	return $result;
3776	}
3777
3778	/**
3779	* Default settings for heartbeat
3780	*
3781	* Outputs the nonce used in the heartbeat XHR
3782	*
3783	* @since 3.6.0
3784	*
3785	* @param array $settings
3786	* @return array $settings
3787	*/
3788	function wp_heartbeat_settings( $settings ) {
3789	if ( ! is_admin() )
3790	$settings['ajaxurl'] = admin_url( 'admin-ajax.php', 'relative' );
3791
3792	if ( is_user_logged_in() )
3793	$settings['nonce'] = wp_create_nonce( 'heartbeat-nonce' );
3794
3795	return $settings;
3796	}

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Ticket #40508: general-template.php

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