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Ticket #2984: functions.php

File functions.php, 71.1 KB (added by ttscoff, 6 years ago)

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1	<?php
2
3	require_once(dirname(__FILE__).'/functions-compat.php');
4
5	if ( !function_exists('_') ) {
6	function _($string) {
7	return $string;
8	}
9	}
10
11	function get_profile($field, $user = false) {
12	global $wpdb;
13	if ( !$user )
14	$user = $wpdb->escape($_COOKIE[USER_COOKIE]);
15	return $wpdb->get_var("SELECT $field FROM $wpdb->users WHERE user_login = '$user'");
16	}
17
18	function mysql2date($dateformatstring, $mysqlstring, $translate = true) {
19	global $month, $weekday, $month_abbrev, $weekday_abbrev;
20	$m = $mysqlstring;
21	if ( empty($m) ) {
22	return false;
23	}
24	$i = mktime(substr($m,11,2),substr($m,14,2),substr($m,17,2),substr($m,5,2),substr($m,8,2),substr($m,0,4));
25
26	if ( -1 == $i \|\| false == $i )
27	$i = 0;
28
29	if ( !empty($month) && !empty($weekday) && $translate ) {
30	$datemonth = $month[date('m', $i)];
31	$datemonth_abbrev = $month_abbrev[$datemonth];
32	$dateweekday = $weekday[date('w', $i)];
33	$dateweekday_abbrev = $weekday_abbrev[$dateweekday];
34	$dateformatstring = ' '.$dateformatstring;
35	$dateformatstring = preg_replace("/([^\\\])D/", "\\1".backslashit($dateweekday_abbrev), $dateformatstring);
36	$dateformatstring = preg_replace("/([^\\\])F/", "\\1".backslashit($datemonth), $dateformatstring);
37	$dateformatstring = preg_replace("/([^\\\])l/", "\\1".backslashit($dateweekday), $dateformatstring);
38	$dateformatstring = preg_replace("/([^\\\])M/", "\\1".backslashit($datemonth_abbrev), $dateformatstring);
39
40	$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring)-1);
41	}
42	$j = @date($dateformatstring, $i);
43	if ( !$j ) {
44	// for debug purposes
45	// echo $i." ".$mysqlstring;
46	}
47	return $j;
48	}
49
50	function current_time($type, $gmt = 0) {
51	switch ($type) {
52	case 'mysql':
53	if ( $gmt ) $d = gmdate('Y-m-d H:i:s');
54	else $d = gmdate('Y-m-d H:i:s', (time() + (get_settings('gmt_offset') * 3600)));
55	return $d;
56	break;
57	case 'timestamp':
58	if ( $gmt ) $d = time();
59	else $d = time() + (get_settings('gmt_offset') * 3600);
60	return $d;
61	break;
62	}
63	}
64
65	function date_i18n($dateformatstring, $unixtimestamp) {
66	global $month, $weekday, $month_abbrev, $weekday_abbrev;
67	$i = $unixtimestamp;
68	if ( (!empty($month)) && (!empty($weekday)) ) {
69	$datemonth = $month[date('m', $i)];
70	$datemonth_abbrev = $month_abbrev[$datemonth];
71	$dateweekday = $weekday[date('w', $i)];
72	$dateweekday_abbrev = $weekday_abbrev[$dateweekday];
73	$dateformatstring = ' '.$dateformatstring;
74	$dateformatstring = preg_replace("/([^\\\])D/", "\\1".backslashit($dateweekday_abbrev), $dateformatstring);
75	$dateformatstring = preg_replace("/([^\\\])F/", "\\1".backslashit($datemonth), $dateformatstring);
76	$dateformatstring = preg_replace("/([^\\\])l/", "\\1".backslashit($dateweekday), $dateformatstring);
77	$dateformatstring = preg_replace("/([^\\\])M/", "\\1".backslashit($datemonth_abbrev), $dateformatstring);
78	$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring)-1);
79	}
80	$j = @date($dateformatstring, $i);
81	return $j;
82	}
83
84	function get_weekstartend($mysqlstring, $start_of_week) {
85	$my = substr($mysqlstring,0,4);
86	$mm = substr($mysqlstring,8,2);
87	$md = substr($mysqlstring,5,2);
88	$day = mktime(0,0,0, $md, $mm, $my);
89	$weekday = date('w',$day);
90	$i = 86400;
91
92	if ( $weekday < get_settings('start_of_week') )
93	$weekday = 7 - (get_settings('start_of_week') - $weekday);
94
95	while ($weekday > get_settings('start_of_week')) {
96	$weekday = date('w',$day);
97	if ( $weekday < get_settings('start_of_week') )
98	$weekday = 7 - (get_settings('start_of_week') - $weekday);
99
100	$day = $day - 86400;
101	$i = 0;
102	}
103	$week['start'] = $day + 86400 - $i;
104	// $week['end'] = $day - $i + 691199;
105	$week['end'] = $week['start'] + 604799;
106	return $week;
107	}
108
109	function get_lastpostdate($timezone = 'server') {
110	global $cache_lastpostdate, $pagenow, $wpdb;
111	$add_seconds_blog = get_settings('gmt_offset') * 3600;
112	$add_seconds_server = date('Z');
113	$now = current_time('mysql', 1);
114	if ( !isset($cache_lastpostdate[$timezone]) ) {
115	switch(strtolower($timezone)) {
116	case 'gmt':
117	$lastpostdate = $wpdb->get_var("SELECT post_date_gmt FROM $wpdb->posts WHERE post_date_gmt <= '$now' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
118	break;
119	case 'blog':
120	$lastpostdate = $wpdb->get_var("SELECT post_date FROM $wpdb->posts WHERE post_date_gmt <= '$now' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
121	break;
122	case 'server':
123	$lastpostdate = $wpdb->get_var("SELECT DATE_ADD(post_date_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_date_gmt <= '$now' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
124	break;
125	}
126	$cache_lastpostdate[$timezone] = $lastpostdate;
127	} else {
128	$lastpostdate = $cache_lastpostdate[$timezone];
129	}
130	return $lastpostdate;
131	}
132
133	function get_lastpostmodified($timezone = 'server') {
134	global $cache_lastpostmodified, $pagenow, $wpdb;
135	$add_seconds_blog = get_settings('gmt_offset') * 3600;
136	$add_seconds_server = date('Z');
137	$now = current_time('mysql', 1);
138	if ( !isset($cache_lastpostmodified[$timezone]) ) {
139	switch(strtolower($timezone)) {
140	case 'gmt':
141	$lastpostmodified = $wpdb->get_var("SELECT post_modified_gmt FROM $wpdb->posts WHERE post_modified_gmt <= '$now' AND post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
142	break;
143	case 'blog':
144	$lastpostmodified = $wpdb->get_var("SELECT post_modified FROM $wpdb->posts WHERE post_modified_gmt <= '$now' AND post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
145	break;
146	case 'server':
147	$lastpostmodified = $wpdb->get_var("SELECT DATE_ADD(post_modified_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_modified_gmt <= '$now' AND post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
148	break;
149	}
150	$lastpostdate = get_lastpostdate($timezone);
151	if ( $lastpostdate > $lastpostmodified ) {
152	$lastpostmodified = $lastpostdate;
153	}
154	$cache_lastpostmodified[$timezone] = $lastpostmodified;
155	} else {
156	$lastpostmodified = $cache_lastpostmodified[$timezone];
157	}
158	return $lastpostmodified;
159	}
160
161	function user_pass_ok($user_login,$user_pass) {
162	global $cache_userdata;
163	if ( empty($cache_userdata[$user_login]) ) {
164	$userdata = get_userdatabylogin($user_login);
165	} else {
166	$userdata = $cache_userdata[$user_login];
167	}
168	return (md5($user_pass) == $userdata->user_pass);
169	}
170
171
172	function get_usernumposts($userid) {
173	global $wpdb;
174	return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = '$userid' AND post_status = 'publish'");
175	}
176
177
178	// examine a url (supposedly from this blog) and try to
179	// determine the post ID it represents.
180	function url_to_postid($url) {
181	global $wp_rewrite;
182
183	// First, check to see if there is a 'p=N' or 'page_id=N' to match against
184	preg_match('#[?&](p\|page_id)=(\d+)#', $url, $values);
185	$id = intval($values[2]);
186	if ( $id ) return $id;
187
188	// Check to see if we are using rewrite rules
189	$rewrite = $wp_rewrite->wp_rewrite_rules();
190
191	// Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options
192	if ( empty($rewrite) )
193	return 0;
194
195	// $url cleanup by Mark Jaquith
196	// This fixes things like #anchors, ?query=strings, missing 'www.',
197	// added 'www.', or added 'index.php/' that will mess up our WP_Query
198	// and return a false negative
199
200	// Get rid of the #anchor
201	$url_split = explode('#', $url);
202	$url = $url_split[0];
203
204	// Get rid of URI ?query=string
205	$url_split = explode('?', $url);
206	$url = $url_split[0];
207
208	// Add 'www.' if it is absent and should be there
209	if ( false !== strpos(get_settings('home'), '://www.') && false === strpos($url, '://www.') )
210	$url = str_replace('://', '://www.', $url);
211
212	// Strip 'www.' if it is present and shouldn't be
213	if ( false === strpos(get_settings('home'), '://www.') )
214	$url = str_replace('://www.', '://', $url);
215
216	// Strip 'index.php/' if we're not using path info permalinks
217	if ( false === strpos($rewrite, 'index.php/') )
218	$url = str_replace('index.php/', '', $url);
219
220	if ( false !== strpos($url, get_settings('home')) ) {
221	// Chop off http://domain.com
222	$url = str_replace(get_settings('home'), '', $url);
223	} else {
224	// Chop off /path/to/blog
225	$home_path = parse_url(get_settings('home'));
226	$home_path = $home_path['path'];
227	$url = str_replace($home_path, '', $url);
228	}
229
230	// Trim leading and lagging slashes
231	$url = trim($url, '/');
232
233	$request = $url;
234
235	// Done with cleanup
236
237	// Look for matches.
238	$request_match = $request;
239	foreach ($rewrite as $match => $query) {
240	// If the requesting file is the anchor of the match, prepend it
241	// to the path info.
242	if ( (! empty($url)) && (strpos($match, $url) === 0) ) {
243	$request_match = $url . '/' . $request;
244	}
245
246	if ( preg_match("!^$match!", $request_match, $matches) ) {
247	// Got a match.
248	// Trim the query of everything up to the '?'.
249	$query = preg_replace("!^.+\?!", '', $query);
250
251	// Substitute the substring matches into the query.
252	eval("\$query = \"$query\";");
253	$query = new WP_Query($query);
254	if ( $query->is_single \|\| $query->is_page )
255	return $query->post->ID;
256	else
257	return 0;
258	}
259	}
260	return 0;
261	}
262
263
264	function maybe_unserialize($original) {
265	if ( false !== $gm = @ unserialize($original) )
266	return $gm;
267	else
268	return $original;
269	}
270
271	/* Options functions */
272
273	function get_settings($setting) {
274	global $wpdb;
275
276	$value = wp_cache_get($setting, 'options');
277
278	if ( false === $value ) {
279	if ( defined('WP_INSTALLING') )
280	$wpdb->hide_errors();
281	$row = $wpdb->get_row("SELECT option_value FROM $wpdb->options WHERE option_name = '$setting' LIMIT 1");
282	if ( defined('WP_INSTALLING') )
283	$wpdb->show_errors();
284
285	if( is_object( $row) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
286	$value = $row->option_value;
287	wp_cache_set($setting, $value, 'options');
288	} else {
289	return false;
290	}
291	}
292
293	// If home is not set use siteurl.
294	if ( 'home' == $setting && '' == $value )
295	return get_settings('siteurl');
296
297	if ( 'siteurl' == $setting \|\| 'home' == $setting \|\| 'category_base' == $setting )
298	$value = preg_replace('\|/+$\|', '', $value);
299
300	return apply_filters( 'option_' . $setting, maybe_unserialize($value) );
301	}
302
303	function get_option($option) {
304	return get_settings($option);
305	}
306
307	function get_user_option( $option, $user = 0 ) {
308	global $wpdb;
309
310	if ( empty($user) )
311	$user = wp_get_current_user();
312	else
313	$user = get_userdata($user);
314
315	if ( isset( $user->{$wpdb->prefix . $option} ) ) // Blog specific
316	return $user->{$wpdb->prefix . $option};
317	elseif ( isset( $user->{$option} ) ) // User specific and cross-blog
318	return $user->{$option};
319	else // Blog global
320	return get_option( $option );
321	}
322
323	function form_option($option) {
324	echo htmlspecialchars( get_option($option), ENT_QUOTES );
325	}
326
327	function get_alloptions() {
328	global $wpdb, $wp_queries;
329	$wpdb->hide_errors();
330	if ( !$options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'") ) {
331	$options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options");
332	}
333	$wpdb->show_errors();
334
335	foreach ($options as $option) {
336	// "When trying to design a foolproof system,
337	// never underestimate the ingenuity of the fools :)" -- Dougal
338	if ( 'siteurl' == $option->option_name )
339	$option->option_value = preg_replace('\|/+$\|', '', $option->option_value);
340	if ( 'home' == $option->option_name )
341	$option->option_value = preg_replace('\|/+$\|', '', $option->option_value);
342	if ( 'category_base' == $option->option_name )
343	$option->option_value = preg_replace('\|/+$\|', '', $option->option_value);
344	$value = maybe_unserialize($option->option_value);
345	$all_options->{$option->option_name} = apply_filters('pre_option_' . $option->option_name, $value);
346	}
347	return apply_filters('all_options', $all_options);
348	}
349
350	function update_option($option_name, $newvalue) {
351	global $wpdb;
352
353	if ( is_string($newvalue) )
354	$newvalue = trim($newvalue);
355
356	// If the new and old values are the same, no need to update.
357	$oldvalue = get_option($option_name);
358	if ( $newvalue == $oldvalue ) {
359	return false;
360	}
361
362	if ( false === $oldvalue ) {
363	add_option($option_name, $newvalue);
364	return true;
365	}
366
367	$_newvalue = $newvalue;
368	if ( is_array($newvalue) \|\| is_object($newvalue) )
369	$newvalue = serialize($newvalue);
370
371	wp_cache_set($option_name, $newvalue, 'options');
372
373	$newvalue = $wpdb->escape($newvalue);
374	$option_name = $wpdb->escape($option_name);
375	$wpdb->query("UPDATE $wpdb->options SET option_value = '$newvalue' WHERE option_name = '$option_name'");
376	if ( $wpdb->rows_affected == 1 ) {
377	do_action("update_option_{$option_name}", array('old'=>$oldvalue, 'new'=>$_newvalue));
378	return true;
379	}
380	return false;
381	}
382
383	function update_user_option( $user_id, $option_name, $newvalue, $global = false ) {
384	global $wpdb;
385	if ( !$global )
386	$option_name = $wpdb->prefix . $option_name;
387	return update_usermeta( $user_id, $option_name, $newvalue );
388	}
389
390	// thx Alex Stapleton, http://alex.vort-x.net/blog/
391	function add_option($name, $value = '', $description = '', $autoload = 'yes') {
392	global $wpdb;
393
394	// Make sure the option doesn't already exist
395	if ( false !== get_option($name) )
396	return;
397
398	if ( is_array($value) \|\| is_object($value) )
399	$value = serialize($value);
400
401	wp_cache_set($name, $value, 'options');
402
403	$name = $wpdb->escape($name);
404	$value = $wpdb->escape($value);
405	$description = $wpdb->escape($description);
406	$wpdb->query("INSERT INTO $wpdb->options (option_name, option_value, option_description, autoload) VALUES ('$name', '$value', '$description', '$autoload')");
407
408	return;
409	}
410
411	function delete_option($name) {
412	global $wpdb;
413	// Get the ID, if no ID then return
414	$option_id = $wpdb->get_var("SELECT option_id FROM $wpdb->options WHERE option_name = '$name'");
415	if ( !$option_id ) return false;
416	$wpdb->query("DELETE FROM $wpdb->options WHERE option_name = '$name'");
417	wp_cache_delete($name, 'options');
418	return true;
419	}
420
421	function add_post_meta($post_id, $key, $value, $unique = false) {
422	global $wpdb, $post_meta_cache;
423
424	if ( $unique ) {
425	if ( $wpdb->get_var("SELECT meta_key FROM $wpdb->postmeta WHERE meta_key
426	= '$key' AND post_id = '$post_id'") ) {
427	return false;
428	}
429	}
430
431	$original = $value;
432	if ( is_array($value) \|\| is_object($value) )
433	$value = $wpdb->escape(serialize($value));
434
435	$wpdb->query("INSERT INTO $wpdb->postmeta (post_id,meta_key,meta_value) VALUES ('$post_id','$key','$value')");
436
437	$post_meta_cache['$post_id'][$key][] = $original;
438
439	return true;
440	}
441
442	function delete_post_meta($post_id, $key, $value = '') {
443	global $wpdb, $post_meta_cache;
444
445	if ( empty($value) ) {
446	$meta_id = $wpdb->get_var("SELECT meta_id FROM $wpdb->postmeta WHERE
447	post_id = '$post_id' AND meta_key = '$key'");
448	} else {
449	$meta_id = $wpdb->get_var("SELECT meta_id FROM $wpdb->postmeta WHERE
450	post_id = '$post_id' AND meta_key = '$key' AND meta_value = '$value'");
451	}
452
453	if ( !$meta_id )
454	return false;
455
456	if ( empty($value) ) {
457	$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = '$post_id'
458	AND meta_key = '$key'");
459	unset($post_meta_cache['$post_id'][$key]);
460	} else {
461	$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = '$post_id'
462	AND meta_key = '$key' AND meta_value = '$value'");
463	$cache_key = $post_meta_cache['$post_id'][$key];
464	if ($cache_key) foreach ( $cache_key as $index => $data )
465	if ( $data == $value )
466	unset($post_meta_cache['$post_id'][$key][$index]);
467	}
468
469	unset($post_meta_cache['$post_id'][$key]);
470
471	return true;
472	}
473
474	function get_post_meta($post_id, $key, $single = false) {
475	global $wpdb, $post_meta_cache;
476
477	if ( isset($post_meta_cache[$post_id][$key]) ) {
478	if ( $single ) {
479	return maybe_unserialize( $post_meta_cache[$post_id][$key][0] );
480	} else {
481	return maybe_unserialize( $post_meta_cache[$post_id][$key] );
482	}
483	}
484
485	$metalist = $wpdb->get_results("SELECT meta_value FROM $wpdb->postmeta WHERE post_id = '$post_id' AND meta_key = '$key'", ARRAY_N);
486
487	$values = array();
488	if ( $metalist ) {
489	foreach ($metalist as $metarow) {
490	$values[] = $metarow[0];
491	}
492	}
493
494	if ( $single ) {
495	if ( count($values) ) {
496	$return = maybe_unserialize( $values[0] );
497	} else {
498	return '';
499	}
500	} else {
501	$return = $values;
502	}
503
504	return maybe_unserialize($return);
505	}
506
507	function update_post_meta($post_id, $key, $value, $prev_value = '') {
508	global $wpdb, $post_meta_cache;
509
510	$original_value = $value;
511	if ( is_array($value) \|\| is_object($value) )
512	$value = $wpdb->escape(serialize($value));
513
514	$original_prev = $prev_value;
515	if ( is_array($prev_value) \|\| is_object($prev_value) )
516	$prev_value = $wpdb->escape(serialize($prev_value));
517
518	if (! $wpdb->get_var("SELECT meta_key FROM $wpdb->postmeta WHERE meta_key
519	= '$key' AND post_id = '$post_id'") ) {
520	return false;
521	}
522
523	if ( empty($prev_value) ) {
524	$wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '$value' WHERE
525	meta_key = '$key' AND post_id = '$post_id'");
526	$cache_key = $post_meta_cache['$post_id'][$key];
527	if ( !empty($cache_key) )
528	foreach ($cache_key as $index => $data)
529	$post_meta_cache['$post_id'][$key][$index] = $original_value;
530	} else {
531	$wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '$value' WHERE
532	meta_key = '$key' AND post_id = '$post_id' AND meta_value = '$prev_value'");
533	$cache_key = $post_meta_cache['$post_id'][$key];
534	if ( !empty($cache_key) )
535	foreach ($cache_key as $index => $data)
536	if ( $data == $original_prev )
537	$post_meta_cache['$post_id'][$key][$index] = $original_value;
538	}
539
540	return true;
541	}
542
543	// Deprecated. Use get_post().
544	function get_postdata($postid) {
545	$post = &get_post($postid);
546
547	$postdata = array (
548	'ID' => $post->ID,
549	'Author_ID' => $post->post_author,
550	'Date' => $post->post_date,
551	'Content' => $post->post_content,
552	'Excerpt' => $post->post_excerpt,
553	'Title' => $post->post_title,
554	'Category' => $post->post_category,
555	'post_status' => $post->post_status,
556	'comment_status' => $post->comment_status,
557	'ping_status' => $post->ping_status,
558	'post_password' => $post->post_password,
559	'to_ping' => $post->to_ping,
560	'pinged' => $post->pinged,
561	'post_name' => $post->post_name
562	);
563
564	return $postdata;
565	}
566
567	// Retrieves post data given a post ID or post object.
568	// Handles post caching.
569	function &get_post(&$post, $output = OBJECT) {
570	global $post_cache, $wpdb;
571
572	if ( empty($post) ) {
573	if ( isset($GLOBALS['post']) )
574	$_post = & $GLOBALS['post'];
575	else
576	$_post = null;
577	} elseif ( is_object($post) ) {
578	if ( 'static' == $post->post_status )
579	return get_page($post, $output);
580	if ( !isset($post_cache[$post->ID]) )
581	$post_cache[$post->ID] = &$post;
582	$_post = & $post_cache[$post->ID];
583	} else {
584	if ( $_post = wp_cache_get($post, 'pages') )
585	return get_page($_post, $output);
586	elseif ( isset($post_cache[$post]) )
587	$_post = & $post_cache[$post];
588	else {
589	$query = "SELECT * FROM $wpdb->posts WHERE ID = '$post' LIMIT 1";
590	$_post = & $wpdb->get_row($query);
591	if ( 'static' == $_post->post_status )
592	return get_page($_post, $output);
593	$post_cache[$post] = & $_post;
594	}
595	}
596
597	if ( defined(WP_IMPORTING) )
598	unset($post_cache);
599
600	if ( $output == OBJECT ) {
601	return $_post;
602	} elseif ( $output == ARRAY_A ) {
603	return get_object_vars($_post);
604	} elseif ( $output == ARRAY_N ) {
605	return array_values(get_object_vars($_post));
606	} else {
607	return $_post;
608	}
609	}
610
611	function &get_children($post = 0, $output = OBJECT) {
612	global $post_cache, $wpdb;
613
614	if ( empty($post) ) {
615	if ( isset($GLOBALS['post']) )
616	$post_parent = & $GLOBALS['post']->post_parent;
617	else
618	return false;
619	} elseif ( is_object($post) ) {
620	$post_parent = $post->post_parent;
621	} else {
622	$post_parent = $post;
623	}
624
625	$post_parent = (int) $post_parent;
626
627	$query = "SELECT * FROM $wpdb->posts WHERE post_parent = $post_parent";
628
629	$children = $wpdb->get_results($query);
630
631	if ( $children ) {
632	foreach ( $children as $key => $child ) {
633	$post_cache[$child->ID] =& $children[$key];
634	$kids[$child->ID] =& $children[$key];
635	}
636	} else {
637	return false;
638	}
639
640	if ( $output == OBJECT ) {
641	return $kids;
642	} elseif ( $output == ARRAY_A ) {
643	foreach ( $kids as $kid )
644	$weeuns[$kid->ID] = get_object_vars($kids[$kid->ID]);
645	return $weeuns;
646	} elseif ( $output == ARRAY_N ) {
647	foreach ( $kids as $kid )
648	$babes[$kid->ID] = array_values(get_object_vars($kids[$kid->ID]));
649	return $babes;
650	} else {
651	return $kids;
652	}
653	}
654
655	function set_page_path($page) {
656	$page->fullpath = '/' . $page->post_name;
657	$path = $page->fullpath;
658	$curpage = $page;
659	while ($curpage->post_parent != 0) {
660	$curpage = get_page($curpage->post_parent);
661	$path = '/' . $curpage->post_name . $path;
662	}
663
664	$page->fullpath = $path;
665
666	return $page;
667	}
668
669	// Retrieves page data given a page ID or page object.
670	// Handles page caching.
671	function &get_page(&$page, $output = OBJECT) {
672	global $wpdb;
673
674	if ( empty($page) ) {
675	if ( isset($GLOBALS['page']) ) {
676	$_page = & $GLOBALS['page'];
677	wp_cache_add($_page->ID, $_page, 'pages');
678	} else {
679	$_page = null;
680	}
681	} elseif ( is_object($page) ) {
682	if ( 'static' != $page->post_status )
683	return get_post($page, $output);
684	wp_cache_add($page->ID, $page, 'pages');
685	$_page = $page;
686	} else {
687	if ( isset($GLOBALS['page']) && ($page == $GLOBALS['page']->ID) ) {
688	$_page = & $GLOBALS['page'];
689	wp_cache_add($_page->ID, $_page, 'pages');
690	} elseif ( $_page = $GLOBALS['post_cache'][$page] ) {
691	return get_post($page, $output);
692	} elseif ( $_page = wp_cache_get($page, 'pages') ) {
693	// Got it.
694	} else {
695	$query = "SELECT * FROM $wpdb->posts WHERE ID= '$page' LIMIT 1";
696	$_page = & $wpdb->get_row($query);
697	if ( 'static' != $_page->post_status )
698	return get_post($_page, $output);
699	wp_cache_add($_page->ID, $_page, 'pages');
700	}
701	}
702
703	if (!isset($_page->fullpath)) {
704	$_page = set_page_path($_page);
705	wp_cache_replace($_page->cat_ID, $_page, 'pages');
706	}
707
708	if ( $output == OBJECT ) {
709	return $_page;
710	} elseif ( $output == ARRAY_A ) {
711	return get_object_vars($_page);
712	} elseif ( $output == ARRAY_N ) {
713	return array_values(get_object_vars($_page));
714	} else {
715	return $_page;
716	}
717	}
718
719	function set_category_path($cat) {
720	$cat->fullpath = '/' . $cat->category_nicename;
721	$path = $cat->fullpath;
722	$curcat = $cat;
723	while ($curcat->category_parent != 0) {
724	$curcat = get_category($curcat->category_parent);
725	$path = '/' . $curcat->category_nicename . $path;
726	}
727
728	$cat->fullpath = $path;
729
730	return $cat;
731	}
732
733	// Retrieves category data given a category ID or category object.
734	// Handles category caching.
735	function &get_category(&$category, $output = OBJECT) {
736	global $wpdb;
737
738	if ( empty($category) )
739	return null;
740
741	if ( is_object($category) ) {
742	wp_cache_add($category->cat_ID, $category, 'category');
743	$_category = $category;
744	} else {
745	if ( ! $_category = wp_cache_get($category, 'category') ) {
746	$_category = $wpdb->get_row("SELECT * FROM $wpdb->categories WHERE cat_ID = '$category' LIMIT 1");
747	wp_cache_add($category, $_category, 'category');
748	}
749	}
750
751	$_category = apply_filters('get_category', $_category);
752
753	if ( !isset($_category->fullpath) ) {
754	$_category = set_category_path($_category);
755	wp_cache_replace($_category->cat_ID, $_category, 'category');
756	}
757
758	if ( $output == OBJECT ) {
759	return $_category;
760	} elseif ( $output == ARRAY_A ) {
761	return get_object_vars($_category);
762	} elseif ( $output == ARRAY_N ) {
763	return array_values(get_object_vars($_category));
764	} else {
765	return $_category;
766	}
767	}
768
769	// Retrieves comment data given a comment ID or comment object.
770	// Handles comment caching.
771	function &get_comment(&$comment, $output = OBJECT) {
772	global $comment_cache, $wpdb;
773
774	if ( empty($comment) )
775	return null;
776
777	if ( is_object($comment) ) {
778	if ( !isset($comment_cache[$comment->comment_ID]) )
779	$comment_cache[$comment->comment_ID] = &$comment;
780	$_comment = & $comment_cache[$comment->comment_ID];
781	} else {
782	if ( !isset($comment_cache[$comment]) ) {
783	$_comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment' LIMIT 1");
784	$comment_cache[$comment->comment_ID] = & $_comment;
785	} else {
786	$_comment = & $comment_cache[$comment];
787	}
788	}
789
790	if ( $output == OBJECT ) {
791	return $_comment;
792	} elseif ( $output == ARRAY_A ) {
793	return get_object_vars($_comment);
794	} elseif ( $output == ARRAY_N ) {
795	return array_values(get_object_vars($_comment));
796	} else {
797	return $_comment;
798	}
799	}
800
801	function get_catname($cat_ID) {
802	$category = &get_category($cat_ID);
803	return $category->cat_name;
804	}
805
806	function get_all_category_ids() {
807	global $wpdb;
808
809	if ( ! $cat_ids = wp_cache_get('all_category_ids', 'category') ) {
810	$cat_ids = $wpdb->get_col("SELECT cat_ID FROM $wpdb->categories");
811	wp_cache_add('all_category_ids', $cat_ids, 'category');
812	}
813
814	return $cat_ids;
815	}
816
817	function get_all_page_ids() {
818	global $wpdb;
819
820	if ( ! $page_ids = wp_cache_get('all_page_ids', 'pages') ) {
821	$page_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_status='static'");
822	wp_cache_add('all_page_ids', $page_ids, 'pages');
823	}
824
825	return $page_ids;
826	}
827
828	function gzip_compression() {
829	if ( !get_settings('gzipcompression') ) return false;
830
831	if ( extension_loaded('zlib') ) {
832	ob_start('ob_gzhandler');
833	}
834	}
835
836
837	// functions to count the page generation time (from phpBB2)
838	// ( or just any time between timer_start() and timer_stop() )
839
840	function timer_stop($display = 0, $precision = 3) { //if called like timer_stop(1), will echo $timetotal
841	global $timestart, $timeend;
842	$mtime = microtime();
843	$mtime = explode(' ',$mtime);
844	$mtime = $mtime[1] + $mtime[0];
845	$timeend = $mtime;
846	$timetotal = $timeend-$timestart;
847	if ( $display )
848	echo number_format($timetotal,$precision);
849	return $timetotal;
850	}
851
852	function weblog_ping($server = '', $path = '') {
853	global $wp_version;
854	include_once (ABSPATH . WPINC . '/class-IXR.php');
855
856	// using a timeout of 3 seconds should be enough to cover slow servers
857	$client = new IXR_Client($server, ((!strlen(trim($path)) \|\| ('/' == $path)) ? false : $path));
858	$client->timeout = 3;
859	$client->useragent .= ' -- WordPress/'.$wp_version;
860
861	// when set to true, this outputs debug messages by itself
862	$client->debug = false;
863	$home = trailingslashit( get_option('home') );
864	if ( !$client->query('weblogUpdates.extendedPing', get_settings('blogname'), $home, get_bloginfo('rss2_url') ) ) // then try a normal ping
865	$client->query('weblogUpdates.ping', get_settings('blogname'), $home);
866	}
867
868	function generic_ping($post_id = 0) {
869	$services = get_settings('ping_sites');
870	$services = preg_replace("\|(\s)+\|", '$1', $services); // Kill dupe lines
871	$services = trim($services);
872	if ( '' != $services ) {
873	$services = explode("\n", $services);
874	foreach ($services as $service) {
875	weblog_ping($service);
876	}
877	}
878
879	return $post_id;
880	}
881
882	// Send a Trackback
883	function trackback($trackback_url, $title, $excerpt, $ID) {
884	global $wpdb, $wp_version;
885
886	if ( empty($trackback_url) )
887	return;
888
889	$title = urlencode($title);
890	$excerpt = urlencode($excerpt);
891	$blog_name = urlencode(get_settings('blogname'));
892	$tb_url = $trackback_url;
893	$url = urlencode(get_permalink($ID));
894	$query_string = "title=$title&url=$url&blog_name=$blog_name&excerpt=$excerpt";
895	$trackback_url = parse_url($trackback_url);
896	$http_request = 'POST ' . $trackback_url['path'] . ($trackback_url['query'] ? '?'.$trackback_url['query'] : '') . " HTTP/1.0\r\n";
897	$http_request .= 'Host: '.$trackback_url['host']."\r\n";
898	$http_request .= 'Content-Type: application/x-www-form-urlencoded; charset='.get_settings('blog_charset')."\r\n";
899	$http_request .= 'Content-Length: '.strlen($query_string)."\r\n";
900	$http_request .= "User-Agent: WordPress/" . $wp_version;
901	$http_request .= "\r\n\r\n";
902	$http_request .= $query_string;
903	if ( '' == $trackback_url['port'] )
904	$trackback_url['port'] = 80;
905	$fs = @fsockopen($trackback_url['host'], $trackback_url['port'], $errno, $errstr, 4);
906	@fputs($fs, $http_request);
907	/*
908	$debug_file = 'trackback.log';
909	$fp = fopen($debug_file, 'a');
910	fwrite($fp, "\n*****\nRequest:\n\n$http_request\n\nResponse:\n\n");
911	while(!@feof($fs)) {
912	fwrite($fp, @fgets($fs, 4096));
913	}
914	fwrite($fp, "\n\n");
915	fclose($fp);
916	*/
917	@fclose($fs);
918
919	$tb_url = addslashes( $tb_url );
920	$wpdb->query("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = '$ID'");
921	return $wpdb->query("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_url', '')) WHERE ID = '$ID'");
922	}
923
924	function make_url_footnote($content) {
925	preg_match_all('/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches);
926	$j = 0;
927	for ($i=0; $i<count($matches[0]); $i++) {
928	$links_summary = (!$j) ? "\n" : $links_summary;
929	$j++;
930	$link_match = $matches[0][$i];
931	$link_number = '['.($i+1).']';
932	$link_url = $matches[2][$i];
933	$link_text = $matches[4][$i];
934	$content = str_replace($link_match, $link_text.' '.$link_number, $content);
935	$link_url = ((strtolower(substr($link_url,0,7)) != 'http://') && (strtolower(substr($link_url,0,8)) != 'https://')) ? get_settings('home') . $link_url : $link_url;
936	$links_summary .= "\n".$link_number.' '.$link_url;
937	}
938	$content = strip_tags($content);
939	$content .= $links_summary;
940	return $content;
941	}
942
943
944	function xmlrpc_getposttitle($content) {
945	global $post_default_title;
946	if ( preg_match('/<title>(.+?)<\/title>/is', $content, $matchtitle) ) {
947	$post_title = $matchtitle[0];
948	$post_title = preg_replace('/<title>/si', '', $post_title);
949	$post_title = preg_replace('/<\/title>/si', '', $post_title);
950	} else {
951	$post_title = $post_default_title;
952	}
953	return $post_title;
954	}
955
956	function xmlrpc_getpostcategory($content) {
957	global $post_default_category;
958	if ( preg_match('/<category>(.+?)<\/category>/is', $content, $matchcat) ) {
959	$post_category = trim($matchcat[1], ',');
960	$post_category = explode(',', $post_category);
961	} else {
962	$post_category = $post_default_category;
963	}
964	return $post_category;
965	}
966
967	function xmlrpc_removepostdata($content) {
968	$content = preg_replace('/<title>(.+?)<\/title>/si', '', $content);
969	$content = preg_replace('/<category>(.+?)<\/category>/si', '', $content);
970	$content = trim($content);
971	return $content;
972	}
973
974	function debug_fopen($filename, $mode) {
975	global $debug;
976	if ( $debug == 1 ) {
977	$fp = fopen($filename, $mode);
978	return $fp;
979	} else {
980	return false;
981	}
982	}
983
984	function debug_fwrite($fp, $string) {
985	global $debug;
986	if ( $debug == 1 ) {
987	fwrite($fp, $string);
988	}
989	}
990
991	function debug_fclose($fp) {
992	global $debug;
993	if ( $debug == 1 ) {
994	fclose($fp);
995	}
996	}
997
998	function spawn_pinger() {
999	global $wpdb, $wp_version;
1000	$doping = false;
1001	if ( $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE TRIM(to_ping) != '' LIMIT 1") )
1002	$doping = true;
1003
1004	if ( $wpdb->get_var("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_pingme' OR meta_key = '_encloseme' LIMIT 1") )
1005	$doping = true;
1006
1007	if ( substr(php_sapi_name(), 0, 3) == 'cgi' )
1008	return $doping;
1009
1010	if ( $doping ) {
1011	$ping_url = get_settings('siteurl') .'/wp-admin/execute-pings.php';
1012	$parts = parse_url($ping_url);
1013	$argyle = @ fsockopen($parts['host'], $_SERVER['SERVER_PORT'], $errno, $errstr, 0.01);
1014	if ( $argyle )
1015	fputs($argyle, "GET {$parts['path']}?time=".time()." HTTP/1.0\r\nHost: {$_SERVER['HTTP_HOST']}\r\nUser-Agent: WordPress/{$wp_version}\r\n\r\n");
1016	}
1017	}
1018
1019	function do_enclose( $content, $post_ID ) {
1020	global $wp_version, $wpdb;
1021	include_once (ABSPATH . WPINC . '/class-IXR.php');
1022
1023	$log = debug_fopen(ABSPATH . '/enclosures.log', 'a');
1024	$post_links = array();
1025	debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");
1026
1027	$pung = get_enclosed( $post_ID );
1028
1029	$ltrs = '\w';
1030	$gunk = '/#~:.?+=&%@!\-';
1031	$punc = '.:?\-';
1032	$any = $ltrs . $gunk . $punc;
1033
1034	preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] \| $)}x", $content, $post_links_temp);
1035
1036	debug_fwrite($log, 'Post contents:');
1037	debug_fwrite($log, $content."\n");
1038
1039	foreach($post_links_temp[0] as $link_test) :
1040	if ( !in_array($link_test, $pung) ) : // If we haven't pung it already
1041	$test = parse_url($link_test);
1042	if ( isset($test['query']) )
1043	$post_links[] = $link_test;
1044	elseif (($test['path'] != '/') && ($test['path'] != ''))
1045	$post_links[] = $link_test;
1046	endif;
1047	endforeach;
1048
1049	foreach ($post_links as $url) :
1050	if ( $url != '' && !$wpdb->get_var("SELECT post_id FROM $wpdb->postmeta WHERE post_id = '$post_ID' AND meta_key = 'enclosure' AND meta_value LIKE ('$url%')") ) {
1051	if ( $headers = wp_get_http_headers( $url) ) {
1052	$len = (int) $headers['content-length'];
1053	$type = $wpdb->escape( $headers['content-type'] );
1054	$allowed_types = array( 'video', 'audio' );
1055	if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
1056	$meta_value = "$url\n$len\n$type\n";
1057	$wpdb->query( "INSERT INTO `$wpdb->postmeta` ( `post_id` , `meta_key` , `meta_value` )
1058	VALUES ( '$post_ID', 'enclosure' , '$meta_value')" );
1059	}
1060	}
1061	}
1062	endforeach;
1063	}
1064
1065	function wp_get_http_headers( $url, $red = 1 ) {
1066	global $wp_version;
1067	@set_time_limit( 60 );
1068
1069	if ( $red > 5 )
1070	return false;
1071
1072	$parts = parse_url( $url );
1073	$file = $parts['path'] . ($parts['query'] ? '?'.$parts['query'] : '');
1074	$host = $parts['host'];
1075	if ( !isset( $parts['port'] ) )
1076	$parts['port'] = 80;
1077
1078	$head = "HEAD $file HTTP/1.1\r\nHOST: $host\r\nUser-Agent: WordPress/" . $wp_version . "\r\n\r\n";
1079
1080	$fp = @fsockopen($host, $parts['port'], $err_num, $err_msg, 3);
1081	if ( !$fp )
1082	return false;
1083
1084	$response = '';
1085	fputs( $fp, $head );
1086	while ( !feof( $fp ) && strpos( $response, "\r\n\r\n" ) == false )
1087	$response .= fgets( $fp, 2048 );
1088	fclose( $fp );
1089	preg_match_all('/(.?): (.)\r/', $response, $matches);
1090	$count = count($matches[1]);
1091	for ( $i = 0; $i < $count; $i++) {
1092	$key = strtolower($matches[1][$i]);
1093	$headers["$key"] = $matches[2][$i];
1094	}
1095
1096	preg_match('/.([0-9]{3})./', $response, $return);
1097	$headers['response'] = $return[1]; // HTTP response code eg 204, 200, 404
1098
1099	$code = $headers['response'];
1100	if ( ('302' == $code \|\| '301' == $code) && isset($headers['location']) )
1101	return wp_get_http_headers( $headers['location'], ++$red );
1102
1103	return $headers;
1104	}
1105
1106	// Deprecated. Use the new post loop.
1107	function start_wp() {
1108	global $wp_query, $post;
1109
1110	// Since the old style loop is being used, advance the query iterator here.
1111	$wp_query->next_post();
1112
1113	setup_postdata($post);
1114	}
1115
1116	// Setup global post data.
1117	function setup_postdata($post) {
1118	global $id, $postdata, $authordata, $day, $page, $pages, $multipage, $more, $numpages, $wp_query;
1119	global $pagenow;
1120
1121	$id = $post->ID;
1122
1123	$authordata = get_userdata($post->post_author);
1124
1125	$day = mysql2date('d.m.y', $post->post_date);
1126	$currentmonth = mysql2date('m', $post->post_date);
1127	$numpages = 1;
1128	$page = get_query_var('page');
1129	if ( !$page )
1130	$page = 1;
1131	if ( is_single() \|\| is_page() )
1132	$more = 1;
1133	$content = $post->post_content;
1134	if ( preg_match('/<!--nextpage-->/', $content) ) {
1135	if ( $page > 1 )
1136	$more = 1;
1137	$multipage = 1;
1138	$content = str_replace("\n<!--nextpage-->\n", '<!--nextpage-->', $content);
1139	$content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
1140	$content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
1141	$pages = explode('<!--nextpage-->', $content);
1142	$numpages = count($pages);
1143	} else {
1144	$pages[0] = $post->post_content;
1145	$multipage = 0;
1146	}
1147	return true;
1148	}
1149
1150	// Setup global user vars. Used by set_current_user() for back compat.
1151	function setup_userdata($user_id = '') {
1152	global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_pass_md5, $user_identity;
1153
1154	if ( '' == $user_id )
1155	$user = wp_get_current_user();
1156	else
1157	$user = new WP_User($user_id);
1158
1159	if ( 0 == $user->ID )
1160	return;
1161
1162	$userdata = $user->data;
1163	$user_login = $user->user_login;
1164	$user_level = $user->user_level;
1165	$user_ID = $user->ID;
1166	$user_email = $user->user_email;
1167	$user_url = $user->user_url;
1168	$user_pass_md5 = md5($user->user_pass);
1169	$user_identity = $user->display_name;
1170	}
1171
1172	function is_new_day() {
1173	global $day, $previousday;
1174	if ( $day != $previousday ) {
1175	return(1);
1176	} else {
1177	return(0);
1178	}
1179	}
1180
1181	// Filters: these are the core of WP's plugin architecture
1182
1183	function merge_filters($tag) {
1184	global $wp_filter;
1185	if ( isset($wp_filter['all']) ) {
1186	foreach ($wp_filter['all'] as $priority => $functions) {
1187	if ( isset($wp_filter[$tag][$priority]) )
1188	$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], $wp_filter[$tag][$priority]);
1189	else
1190	$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], array());
1191	$wp_filter[$tag][$priority] = array_unique($wp_filter[$tag][$priority]);
1192	}
1193	}
1194
1195	if ( isset($wp_filter[$tag]) )
1196	ksort( $wp_filter[$tag] );
1197	}
1198
1199	function apply_filters($tag, $string) {
1200	global $wp_filter;
1201
1202	$args = array_slice(func_get_args(), 2);
1203
1204	merge_filters($tag);
1205
1206	if ( !isset($wp_filter[$tag]) ) {
1207	return $string;
1208	}
1209	foreach ($wp_filter[$tag] as $priority => $functions) {
1210	if ( !is_null($functions) ) {
1211	foreach($functions as $function) {
1212
1213	$all_args = array_merge(array($string), $args);
1214	$function_name = $function['function'];
1215	$accepted_args = $function['accepted_args'];
1216
1217	if ( $accepted_args == 1 )
1218	$the_args = array($string);
1219	elseif ( $accepted_args > 1 )
1220	$the_args = array_slice($all_args, 0, $accepted_args);
1221	elseif ( $accepted_args == 0 )
1222	$the_args = NULL;
1223	else
1224	$the_args = $all_args;
1225
1226	$string = call_user_func_array($function_name, $the_args);
1227	}
1228	}
1229	}
1230	return $string;
1231	}
1232
1233	function add_filter($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
1234	global $wp_filter;
1235
1236	// check that we don't already have the same filter at the same priority
1237	if ( isset($wp_filter[$tag]["$priority"]) ) {
1238	foreach($wp_filter[$tag]["$priority"] as $filter) {
1239	// uncomment if we want to match function AND accepted_args
1240	// if ( $filter == array($function, $accepted_args) ) {
1241	if ( $filter['function'] == $function_to_add ) {
1242	return true;
1243	}
1244	}
1245	}
1246
1247	// So the format is wp_filter['tag']['array of priorities']['array of ['array (functions, accepted_args)]']
1248	$wp_filter[$tag]["$priority"][] = array('function'=>$function_to_add, 'accepted_args'=>$accepted_args);
1249	return true;
1250	}
1251
1252	function remove_filter($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
1253	global $wp_filter;
1254
1255	// rebuild the list of filters
1256	if ( isset($wp_filter[$tag]["$priority"]) ) {
1257	$new_function_list = array();
1258	foreach($wp_filter[$tag]["$priority"] as $filter) {
1259	if ( $filter['function'] != $function_to_remove ) {
1260	$new_function_list[] = $filter;
1261	}
1262	}
1263	$wp_filter[$tag]["$priority"] = $new_function_list;
1264	}
1265	return true;
1266	}
1267
1268	// The _action functions are just aliases for the _filter functions, they take special strings instead of generic content
1269
1270	function do_action($tag, $arg = '') {
1271	global $wp_filter;
1272	$extra_args = array_slice(func_get_args(), 2);
1273	if ( is_array($arg) )
1274	$args = array_merge($arg, $extra_args);
1275	else
1276	$args = array_merge(array($arg), $extra_args);
1277
1278	merge_filters($tag);
1279
1280	if ( !isset($wp_filter[$tag]) ) {
1281	return;
1282	}
1283	foreach ($wp_filter[$tag] as $priority => $functions) {
1284	if ( !is_null($functions) ) {
1285	foreach($functions as $function) {
1286
1287	$function_name = $function['function'];
1288	$accepted_args = $function['accepted_args'];
1289
1290	if ( $accepted_args == 1 ) {
1291	if ( is_array($arg) )
1292	$the_args = $arg;
1293	else
1294	$the_args = array($arg);
1295	} elseif ( $accepted_args > 1 ) {
1296	$the_args = array_slice($args, 0, $accepted_args);
1297	} elseif ( $accepted_args == 0 ) {
1298	$the_args = NULL;
1299	} else {
1300	$the_args = $args;
1301	}
1302
1303	$string = call_user_func_array($function_name, $the_args);
1304	}
1305	}
1306	}
1307	}
1308
1309	function add_action($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
1310	add_filter($tag, $function_to_add, $priority, $accepted_args);
1311	}
1312
1313	function remove_action($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
1314	remove_filter($tag, $function_to_remove, $priority, $accepted_args);
1315	}
1316
1317	function get_page_uri($page_id) {
1318	$page = get_page($page_id);
1319	$uri = urldecode($page->post_name);
1320
1321	// A page cannot be it's own parent.
1322	if ( $page->post_parent == $page->ID )
1323	return $uri;
1324
1325	while ($page->post_parent != 0) {
1326	$page = get_page($page->post_parent);
1327	$uri = urldecode($page->post_name) . "/" . $uri;
1328	}
1329
1330	return $uri;
1331	}
1332
1333	function get_posts($args) {
1334	global $wpdb;
1335	parse_str($args, $r);
1336	if ( !isset($r['numberposts']) )
1337	$r['numberposts'] = 5;
1338	if ( !isset($r['offset']) )
1339	$r['offset'] = 0;
1340	if ( !isset($r['category']) )
1341	$r['category'] = '';
1342	if ( !isset($r['orderby']) )
1343	$r['orderby'] = 'post_date';
1344	if ( !isset($r['order']) )
1345	$r['order'] = 'DESC';
1346
1347	$now = current_time('mysql');
1348
1349	$posts = $wpdb->get_results(
1350	"SELECT DISTINCT * FROM $wpdb->posts " .
1351	( empty( $r['category'] ) ? "" : ", $wpdb->post2cat " ) .
1352	" WHERE post_date <= '$now' AND (post_status = 'publish') ".
1353	( empty( $r['category'] ) ? "" : "AND $wpdb->posts.ID = $wpdb->post2cat.post_id AND $wpdb->post2cat.category_id = " . $r['category']. " " ) .
1354	" GROUP BY $wpdb->posts.ID ORDER BY " . $r['orderby'] . " " . $r['order'] . " LIMIT " . $r['offset'] . ',' . $r['numberposts'] );
1355
1356	update_post_caches($posts);
1357
1358	return $posts;
1359	}
1360
1361	function &query_posts($query) {
1362	global $wp_query;
1363	return $wp_query->query($query);
1364	}
1365
1366	function update_post_cache(&$posts) {
1367	global $post_cache;
1368
1369	if ( !$posts )
1370	return;
1371
1372	for ($i = 0; $i < count($posts); $i++) {
1373	$post_cache[$posts[$i]->ID] = &$posts[$i];
1374	}
1375	}
1376
1377	function clean_post_cache($id) {
1378	global $post_cache;
1379
1380	if ( isset( $post_cache[$id] ) )
1381	unset( $post_cache[$id] );
1382	}
1383
1384	function update_page_cache(&$pages) {
1385	global $page_cache;
1386
1387	if ( !$pages )
1388	return;
1389
1390	for ($i = 0; $i < count($pages); $i++) {
1391	$page_cache[$pages[$i]->ID] = &$pages[$i];
1392	wp_cache_add($pages[$i]->ID, $pages[$i], 'pages');
1393	}
1394	}
1395
1396
1397	function clean_page_cache($id) {
1398	global $page_cache;
1399
1400	if ( isset( $page_cache[$id] ) )
1401	unset( $page_cache[$id] );
1402	}
1403
1404	function update_post_category_cache($post_ids) {
1405	global $wpdb, $category_cache;
1406
1407	if ( empty($post_ids) )
1408	return;
1409
1410	if ( is_array($post_ids) )
1411	$post_ids = implode(',', $post_ids);
1412
1413	$dogs = $wpdb->get_results("SELECT post_id, category_id FROM $wpdb->post2cat WHERE post_id IN ($post_ids)");
1414
1415	if ( empty($dogs) )
1416	return;
1417
1418	foreach ($dogs as $catt)
1419	$category_cache[$catt->post_id][$catt->category_id] = &get_category($catt->category_id);
1420	}
1421
1422	function update_post_caches(&$posts) {
1423	global $post_cache, $category_cache, $comment_count_cache, $post_meta_cache;
1424	global $wpdb;
1425
1426	// No point in doing all this work if we didn't match any posts.
1427	if ( !$posts )
1428	return;
1429
1430	// Get the categories for all the posts
1431	for ($i = 0; $i < count($posts); $i++) {
1432	$post_id_array[] = $posts[$i]->ID;
1433	$post_cache[$posts[$i]->ID] = &$posts[$i];
1434	$comment_count_cache[$posts[$i]->ID] = $posts[$i]->comment_count;
1435	}
1436
1437	$post_id_list = implode(',', $post_id_array);
1438
1439	update_post_category_cache($post_id_list);
1440
1441	// Get post-meta info
1442	if ( $meta_list = $wpdb->get_results("SELECT post_id, meta_key, meta_value FROM $wpdb->postmeta WHERE post_id IN($post_id_list) ORDER BY post_id, meta_key", ARRAY_A) ) {
1443	// Change from flat structure to hierarchical:
1444	$post_meta_cache = array();
1445	foreach ($meta_list as $metarow) {
1446	$mpid = $metarow['post_id'];
1447	$mkey = $metarow['meta_key'];
1448	$mval = $metarow['meta_value'];
1449
1450	// Force subkeys to be array type:
1451	if ( !isset($post_meta_cache[$mpid]) \|\| !is_array($post_meta_cache[$mpid]) )
1452	$post_meta_cache[$mpid] = array();
1453	if ( !isset($post_meta_cache[$mpid]["$mkey"]) \|\| !is_array($post_meta_cache[$mpid]["$mkey"]) )
1454	$post_meta_cache[$mpid]["$mkey"] = array();
1455
1456	// Add a value to the current pid/key:
1457	$post_meta_cache[$mpid][$mkey][] = $mval;
1458	}
1459	}
1460	}
1461
1462	function update_category_cache() {
1463	return true;
1464	}
1465
1466	function wp_head() {
1467	do_action('wp_head');
1468	}
1469
1470	function wp_footer() {
1471	do_action('wp_footer');
1472	}
1473
1474	function is_single ($post = '') {
1475	global $wp_query;
1476
1477	if ( !$wp_query->is_single )
1478	return false;
1479
1480	if ( empty( $post) )
1481	return true;
1482
1483	$post_obj = $wp_query->get_queried_object();
1484
1485	if ( $post == $post_obj->ID )
1486	return true;
1487	elseif ( $post == $post_obj->post_title )
1488	return true;
1489	elseif ( $post == $post_obj->post_name )
1490	return true;
1491
1492	return false;
1493	}
1494
1495	function is_page ($page = '') {
1496	global $wp_query;
1497
1498	if ( !$wp_query->is_page )
1499	return false;
1500
1501	if ( empty($page) )
1502	return true;
1503
1504	$page_obj = $wp_query->get_queried_object();
1505
1506	if ( $page == $page_obj->ID )
1507	return true;
1508	elseif ( $page == $page_obj->post_title )
1509	return true;
1510	else if ( $page == $page_obj->post_name )
1511	return true;
1512
1513	return false;
1514	}
1515
1516	function is_attachment () {
1517	global $wp_query;
1518
1519	return $wp_query->is_attachment;
1520	}
1521
1522	function is_preview() {
1523	global $wp_query;
1524
1525	return $wp_query->is_preview;
1526	}
1527
1528	function is_archive () {
1529	global $wp_query;
1530
1531	return $wp_query->is_archive;
1532	}
1533
1534	function is_date () {
1535	global $wp_query;
1536
1537	return $wp_query->is_date;
1538	}
1539
1540	function is_year () {
1541	global $wp_query;
1542
1543	return $wp_query->is_year;
1544	}
1545
1546	function is_month () {
1547	global $wp_query;
1548
1549	return $wp_query->is_month;
1550	}
1551
1552	function is_day () {
1553	global $wp_query;
1554
1555	return $wp_query->is_day;
1556	}
1557
1558	function is_time () {
1559	global $wp_query;
1560
1561	return $wp_query->is_time;
1562	}
1563
1564	function is_author ($author = '') {
1565	global $wp_query;
1566
1567	if ( !$wp_query->is_author )
1568	return false;
1569
1570	if ( empty($author) )
1571	return true;
1572
1573	$author_obj = $wp_query->get_queried_object();
1574
1575	if ( $author == $author_obj->ID )
1576	return true;
1577	elseif ( $author == $author_obj->nickname )
1578	return true;
1579	elseif ( $author == $author_obj->user_nicename )
1580	return true;
1581
1582	return false;
1583	}
1584
1585	function is_category ($category = '') {
1586	global $wp_query;
1587
1588	if ( !$wp_query->is_category )
1589	return false;
1590
1591	if ( empty($category) )
1592	return true;
1593
1594	$cat_obj = $wp_query->get_queried_object();
1595
1596	if ( $category == $cat_obj->cat_ID )
1597	return true;
1598	else if ( $category == $cat_obj->cat_name )
1599	return true;
1600	elseif ( $category == $cat_obj->category_nicename )
1601	return true;
1602
1603	return false;
1604	}
1605
1606	function is_search () {
1607	global $wp_query;
1608
1609	return $wp_query->is_search;
1610	}
1611
1612	function is_feed () {
1613	global $wp_query;
1614
1615	return $wp_query->is_feed;
1616	}
1617
1618	function is_trackback () {
1619	global $wp_query;
1620
1621	return $wp_query->is_trackback;
1622	}
1623
1624	function is_admin () {
1625	global $wp_query;
1626
1627	return ( $wp_query->is_admin \|\| strstr($_SERVER['REQUEST_URI'], 'wp-admin/') );
1628	}
1629
1630	function is_home () {
1631	global $wp_query;
1632
1633	return $wp_query->is_home;
1634	}
1635
1636	function is_404 () {
1637	global $wp_query;
1638
1639	return $wp_query->is_404;
1640	}
1641
1642	function is_comments_popup () {
1643	global $wp_query;
1644
1645	return $wp_query->is_comments_popup;
1646	}
1647
1648	function is_paged () {
1649	global $wp_query;
1650
1651	return $wp_query->is_paged;
1652	}
1653
1654	function in_the_loop() {
1655	global $wp_query;
1656
1657	return $wp_query->in_the_loop;
1658	}
1659
1660	function get_query_var($var) {
1661	global $wp_query;
1662
1663	return $wp_query->get($var);
1664	}
1665
1666	function have_posts() {
1667	global $wp_query;
1668
1669	return $wp_query->have_posts();
1670	}
1671
1672	function rewind_posts() {
1673	global $wp_query;
1674
1675	return $wp_query->rewind_posts();
1676	}
1677
1678	function the_post() {
1679	global $wp_query;
1680
1681	$wp_query->the_post();
1682	}
1683
1684	function get_theme_root() {
1685	return apply_filters('theme_root', ABSPATH . "wp-content/themes");
1686	}
1687
1688	function get_theme_root_uri() {
1689	return apply_filters('theme_root_uri', get_settings('siteurl') . "/wp-content/themes", get_settings('siteurl'));
1690	}
1691
1692	function get_stylesheet() {
1693	return apply_filters('stylesheet', get_settings('stylesheet'));
1694	}
1695
1696	function get_stylesheet_directory() {
1697	$stylesheet = get_stylesheet();
1698	$stylesheet_dir = get_theme_root() . "/$stylesheet";
1699	return apply_filters('stylesheet_directory', $stylesheet_dir, $stylesheet);
1700	}
1701
1702	function get_stylesheet_directory_uri() {
1703	$stylesheet = rawurlencode( get_stylesheet() );
1704	$stylesheet_dir_uri = get_theme_root_uri() . "/$stylesheet";
1705	return apply_filters('stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet);
1706	}
1707
1708	function get_stylesheet_uri() {
1709	$stylesheet_dir_uri = get_stylesheet_directory_uri();
1710	$stylesheet_uri = $stylesheet_dir_uri . "/style.css";
1711	return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
1712	}
1713
1714	function get_template() {
1715	$template = get_settings('template');
1716	if (!file_exists(get_theme_root() . "/$template")) { //works for dirs too
1717	update_option('template', 'default');
1718	update_option('stylesheet', 'default');
1719	}
1720	return apply_filters('template', get_settings('template'));
1721	}
1722
1723	function get_template_directory() {
1724	$template = get_template();
1725	$template_dir = get_theme_root() . "/$template";
1726	return apply_filters('template_directory', $template_dir, $template);
1727	}
1728
1729	function get_template_directory_uri() {
1730	$template = get_template();
1731	$template_dir_uri = get_theme_root_uri() . "/$template";
1732	return apply_filters('template_directory_uri', $template_dir_uri, $template);
1733	}
1734
1735	function get_theme_data($theme_file) {
1736	$theme_data = implode('', file($theme_file));
1737	preg_match("\|Theme Name:(.*)\|i", $theme_data, $theme_name);
1738	preg_match("\|Theme URI:(.*)\|i", $theme_data, $theme_uri);
1739	preg_match("\|Description:(.*)\|i", $theme_data, $description);
1740	preg_match("\|Author:(.*)\|i", $theme_data, $author_name);
1741	preg_match("\|Author URI:(.*)\|i", $theme_data, $author_uri);
1742	preg_match("\|Template:(.*)\|i", $theme_data, $template);
1743	if ( preg_match("\|Version:(.*)\|i", $theme_data, $version) )
1744	$version = trim($version[1]);
1745	else
1746	$version ='';
1747	if ( preg_match("\|Status:(.*)\|i", $theme_data, $status) )
1748	$status = trim($status[1]);
1749	else
1750	$status = 'publish';
1751
1752	$description = wptexturize(trim($description[1]));
1753
1754	$name = $theme_name[1];
1755	$name = trim($name);
1756	$theme = $name;
1757
1758	if ( '' == $author_uri[1] ) {
1759	$author = trim($author_name[1]);
1760	} else {
1761	$author = '<a href="' . trim($author_uri[1]) . '" title="' . __('Visit author homepage') . '">' . trim($author_name[1]) . '</a>';
1762	}
1763
1764	return array('Name' => $name, 'Title' => $theme, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template[1], 'Status' => $status);
1765	}
1766
1767	function get_themes() {
1768	global $wp_themes;
1769	global $wp_broken_themes;
1770
1771	if ( isset($wp_themes) )
1772	return $wp_themes;
1773
1774	$themes = array();
1775	$wp_broken_themes = array();
1776	$theme_root = get_theme_root();
1777	$theme_loc = str_replace(ABSPATH, '', $theme_root);
1778
1779	// Files in wp-content/themes directory
1780	$themes_dir = @ dir($theme_root);
1781	if ( $themes_dir ) {
1782	while(($theme_dir = $themes_dir->read()) !== false) {
1783	if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) {
1784	if ( $theme_dir{0} == '.' \|\| $theme_dir == '..' \|\| $theme_dir == 'CVS' ) {
1785	continue;
1786	}
1787	$stylish_dir = @ dir($theme_root . '/' . $theme_dir);
1788	$found_stylesheet = false;
1789	while (($theme_file = $stylish_dir->read()) !== false) {
1790	if ( $theme_file == 'style.css' ) {
1791	$theme_files[] = $theme_dir . '/' . $theme_file;
1792	$found_stylesheet = true;
1793	break;
1794	}
1795	}
1796	if ( !$found_stylesheet ) {
1797	$wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.'));
1798	}
1799	}
1800	}
1801	}
1802
1803	if ( !$themes_dir \|\| !$theme_files ) {
1804	return $themes;
1805	}
1806
1807	sort($theme_files);
1808
1809	foreach($theme_files as $theme_file) {
1810	if ( ! is_readable("$theme_root/$theme_file") ) {
1811	$wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.'));
1812	continue;
1813	}
1814
1815	$theme_data = get_theme_data("$theme_root/$theme_file");
1816
1817	$name = $theme_data['Name'];
1818	$title = $theme_data['Title'];
1819	$description = wptexturize($theme_data['Description']);
1820	$version = $theme_data['Version'];
1821	$author = $theme_data['Author'];
1822	$template = $theme_data['Template'];
1823	$stylesheet = dirname($theme_file);
1824
1825	foreach (array('png', 'gif', 'jpg', 'jpeg') as $ext) {
1826	if (file_exists("$theme_root/$stylesheet/screenshot.$ext")) {
1827	$screenshot = "screenshot.$ext";
1828	break;
1829	}
1830	}
1831
1832	if ( empty($name) ) {
1833	$name = dirname($theme_file);
1834	$title = $name;
1835	}
1836
1837	if ( empty($template) ) {
1838	if ( file_exists(dirname("$theme_root/$theme_file/index.php")) ) {
1839	$template = dirname($theme_file);
1840	} else {
1841	continue;
1842	}
1843	}
1844
1845	$template = trim($template);
1846
1847	if ( !file_exists("$theme_root/$template/index.php") ) {
1848	$wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'));
1849	continue;
1850	}
1851
1852	$stylesheet_files = array();
1853	$stylesheet_dir = @ dir("$theme_root/$stylesheet");
1854	if ( $stylesheet_dir ) {
1855	while(($file = $stylesheet_dir->read()) !== false) {
1856	if ( !preg_match('\|^\.+$\|', $file) && preg_match('\|\.css$\|', $file) )
1857	$stylesheet_files[] = "$theme_loc/$stylesheet/$file";
1858	}
1859	}
1860
1861	$template_files = array();
1862	$template_dir = @ dir("$theme_root/$template");
1863	if ( $template_dir ) {
1864	while(($file = $template_dir->read()) !== false) {
1865	if ( !preg_match('\|^\.+$\|', $file) && preg_match('\|\.php$\|', $file) )
1866	$template_files[] = "$theme_loc/$template/$file";
1867	}
1868	}
1869
1870	$template_dir = dirname($template_files[0]);
1871	$stylesheet_dir = dirname($stylesheet_files[0]);
1872
1873	if ( empty($template_dir) )
1874	$template_dir = '/';
1875	if ( empty($stylesheet_dir) )
1876	$stylesheet_dir = '/';
1877
1878	// Check for theme name collision. This occurs if a theme is copied to
1879	// a new theme directory and the theme header is not updated. Whichever
1880	// theme is first keeps the name. Subsequent themes get a suffix applied.
1881	// The Default and Classic themes always trump their pretenders.
1882	if ( isset($themes[$name]) ) {
1883	if ( ('WordPress Default' == $name \|\| 'WordPress Classic' == $name) &&
1884	('default' == $stylesheet \|\| 'classic' == $stylesheet) ) {
1885	// If another theme has claimed to be one of our default themes, move
1886	// them aside.
1887	$suffix = $themes[$name]['Stylesheet'];
1888	$new_name = "$name/$suffix";
1889	$themes[$new_name] = $themes[$name];
1890	$themes[$new_name]['Name'] = $new_name;
1891	} else {
1892	$name = "$name/$stylesheet";
1893	}
1894	}
1895
1896	$themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir, 'Status' => $theme_data['Status'], 'Screenshot' => $screenshot);
1897	}
1898
1899	// Resolve theme dependencies.
1900	$theme_names = array_keys($themes);
1901
1902	foreach ($theme_names as $theme_name) {
1903	$themes[$theme_name]['Parent Theme'] = '';
1904	if ( $themes[$theme_name]['Stylesheet'] != $themes[$theme_name]['Template'] ) {
1905	foreach ($theme_names as $parent_theme_name) {
1906	if ( ($themes[$parent_theme_name]['Stylesheet'] == $themes[$parent_theme_name]['Template']) && ($themes[$parent_theme_name]['Template'] == $themes[$theme_name]['Template']) ) {
1907	$themes[$theme_name]['Parent Theme'] = $themes[$parent_theme_name]['Name'];
1908	break;
1909	}
1910	}
1911	}
1912	}
1913
1914	$wp_themes = $themes;
1915
1916	return $themes;
1917	}
1918
1919	function get_theme($theme) {
1920	$themes = get_themes();
1921
1922	if ( array_key_exists($theme, $themes) )
1923	return $themes[$theme];
1924
1925	return NULL;
1926	}
1927
1928	function get_current_theme() {
1929	$themes = get_themes();
1930	$theme_names = array_keys($themes);
1931	$current_template = get_settings('template');
1932	$current_stylesheet = get_settings('stylesheet');
1933	$current_theme = 'WordPress Default';
1934
1935	if ( $themes ) {
1936	foreach ($theme_names as $theme_name) {
1937	if ( $themes[$theme_name]['Stylesheet'] == $current_stylesheet &&
1938	$themes[$theme_name]['Template'] == $current_template ) {
1939	$current_theme = $themes[$theme_name]['Name'];
1940	break;
1941	}
1942	}
1943	}
1944
1945	return $current_theme;
1946	}
1947
1948	function get_query_template($type) {
1949	$template = '';
1950	if ( file_exists(TEMPLATEPATH . "/{$type}.php") )
1951	$template = TEMPLATEPATH . "/{$type}.php";
1952
1953	return apply_filters("{$type}_template", $template);
1954	}
1955
1956	function get_404_template() {
1957	return get_query_template('404');
1958	}
1959
1960	function get_archive_template() {
1961	return get_query_template('archive');
1962	}
1963
1964	function get_author_template() {
1965	return get_query_template('author');
1966	}
1967
1968	function get_category_template() {
1969	$template = '';
1970	if ( file_exists(TEMPLATEPATH . "/category-" . get_query_var('cat') . '.php') )
1971	$template = TEMPLATEPATH . "/category-" . get_query_var('cat') . '.php';
1972	else if ( file_exists(TEMPLATEPATH . "/category.php") )
1973	$template = TEMPLATEPATH . "/category.php";
1974
1975	return apply_filters('category_template', $template);
1976	}
1977
1978	function get_date_template() {
1979	return get_query_template('date');
1980	}
1981
1982	function get_home_template() {
1983	$template = '';
1984
1985	if ( file_exists(TEMPLATEPATH . "/home.php") )
1986	$template = TEMPLATEPATH . "/home.php";
1987	else if ( file_exists(TEMPLATEPATH . "/index.php") )
1988	$template = TEMPLATEPATH . "/index.php";
1989
1990	return apply_filters('home_template', $template);
1991	}
1992
1993	function get_page_template() {
1994	global $wp_query;
1995
1996	$id = $wp_query->post->ID;
1997	$template = get_post_meta($id, '_wp_page_template', true);
1998
1999	if ( 'default' == $template )
2000	$template = '';
2001
2002	if ( ! empty($template) && file_exists(TEMPLATEPATH . "/$template") )
2003	$template = TEMPLATEPATH . "/$template";
2004	else if ( file_exists(TEMPLATEPATH . "/page.php") )
2005	$template = TEMPLATEPATH . "/page.php";
2006	else
2007	$template = '';
2008
2009	return apply_filters('page_template', $template);
2010	}
2011
2012	function get_paged_template() {
2013	return get_query_template('paged');
2014	}
2015
2016	function get_search_template() {
2017	return get_query_template('search');
2018	}
2019
2020	function get_single_template() {
2021	return get_query_template('single');
2022	}
2023
2024	function get_attachment_template() {
2025	global $posts;
2026	$type = explode('/', $posts[0]->post_mime_type);
2027	if ( $template = get_query_template($type[0]) )
2028	return $template;
2029	elseif ( $template = get_query_template($type[1]) )
2030	return $template;
2031	elseif ( $template = get_query_template("$type[0]_$type[1]") )
2032	return $template;
2033	else
2034	return get_query_template('attachment');
2035	}
2036
2037	function get_comments_popup_template() {
2038	if ( file_exists( TEMPLATEPATH . '/comments-popup.php') )
2039	$template = TEMPLATEPATH . '/comments-popup.php';
2040	else
2041	$template = get_theme_root() . '/default/comments-popup.php';
2042
2043	return apply_filters('comments_popup_template', $template);
2044	}
2045
2046	// Borrowed from the PHP Manual user notes. Convert entities, while
2047	// preserving already-encoded entities:
2048	function htmlentities2($myHTML) {
2049	$translation_table=get_html_translation_table (HTML_ENTITIES,ENT_QUOTES);
2050	$translation_table[chr(38)] = '&';
2051	return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};\|#[0-9]{2,3};)/","&" , strtr($myHTML, $translation_table));
2052	}
2053
2054
2055	function is_plugin_page() {
2056	global $plugin_page;
2057
2058	if ( isset($plugin_page) )
2059	return true;
2060
2061	return false;
2062	}
2063
2064	/*
2065	add_query_arg: Returns a modified querystring by adding
2066	a single key & value or an associative array.
2067	Setting a key value to emptystring removes the key.
2068	Omitting oldquery_or_uri uses the $_SERVER value.
2069
2070	Parameters:
2071	add_query_arg(newkey, newvalue, oldquery_or_uri) or
2072	add_query_arg(associative_array, oldquery_or_uri)
2073	*/
2074	function add_query_arg() {
2075	$ret = '';
2076	if ( is_array(func_get_arg(0)) ) {
2077	if ( @func_num_args() < 2 )
2078	$uri = $_SERVER['REQUEST_URI'];
2079	else
2080	$uri = @func_get_arg(1);
2081	} else {
2082	if ( @func_num_args() < 3 )
2083	$uri = $_SERVER['REQUEST_URI'];
2084	else
2085	$uri = @func_get_arg(2);
2086	}
2087
2088	if ( preg_match('\|^https?://\|i', $uri, $matches) ) {
2089	$protocol = $matches[0];
2090	$uri = substr($uri, strlen($protocol));
2091	} else {
2092	$protocol = '';
2093	}
2094
2095	if ( strstr($uri, '?') ) {
2096	$parts = explode('?', $uri, 2);
2097	if ( 1 == count($parts) ) {
2098	$base = '?';
2099	$query = $parts[0];
2100	} else {
2101	$base = $parts[0] . '?';
2102	$query = $parts[1];
2103	}
2104	} else if ( !empty($protocol) \|\| strstr($uri, '/') ) {
2105	$base = $uri . '?';
2106	$query = '';
2107	} else {
2108	$base = '';
2109	$query = $uri;
2110	}
2111
2112	parse_str($query, $qs);
2113	if ( is_array(func_get_arg(0)) ) {
2114	$kayvees = func_get_arg(0);
2115	$qs = array_merge($qs, $kayvees);
2116	} else {
2117	$qs[func_get_arg(0)] = func_get_arg(1);
2118	}
2119
2120	foreach($qs as $k => $v) {
2121	if ( $v != '' ) {
2122	if ( $ret != '' )
2123	$ret .= '&';
2124	$ret .= "$k=$v";
2125	}
2126	}
2127	$ret = $protocol . $base . $ret;
2128	return trim($ret, '?');
2129	}
2130
2131	function remove_query_arg($key, $query) {
2132	return add_query_arg($key, '', $query);
2133	}
2134
2135	function load_template($file) {
2136	global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query,
2137	$wp_rewrite, $wpdb;
2138
2139	extract($wp_query->query_vars);
2140
2141	require_once($file);
2142	}
2143
2144	function add_magic_quotes($array) {
2145	global $wpdb;
2146
2147	foreach ($array as $k => $v) {
2148	if ( is_array($v) ) {
2149	$array[$k] = add_magic_quotes($v);
2150	} else {
2151	$array[$k] = $wpdb->escape($v);
2152	}
2153	}
2154	return $array;
2155	}
2156
2157	function wp_remote_fopen( $uri ) {
2158	if ( ini_get('allow_url_fopen') ) {
2159	$fp = fopen( $uri, 'r' );
2160	if ( !$fp )
2161	return false;
2162	$linea = '';
2163	while( $remote_read = fread($fp, 4096) )
2164	$linea .= $remote_read;
2165	fclose($fp);
2166	return $linea;
2167	} else if ( function_exists('curl_init') ) {
2168	$handle = curl_init();
2169	curl_setopt ($handle, CURLOPT_URL, $uri);
2170	curl_setopt ($handle, CURLOPT_CONNECTTIMEOUT, 1);
2171	curl_setopt ($handle, CURLOPT_RETURNTRANSFER, 1);
2172	$buffer = curl_exec($handle);
2173	curl_close($handle);
2174	return $buffer;
2175	} else {
2176	return false;
2177	}
2178	}
2179
2180	function wp($query_vars = '') {
2181	global $wp;
2182
2183	$wp->main($query_vars);
2184	}
2185
2186	function status_header( $header ) {
2187	if ( 200 == $header )
2188	$text = 'OK';
2189	elseif ( 301 == $header )
2190	$text = 'Moved Permanently';
2191	elseif ( 302 == $header )
2192	$text = 'Moved Temporarily';
2193	elseif ( 304 == $header )
2194	$text = 'Not Modified';
2195	elseif ( 404 == $header ) { //hacked by Brett to make extended archives work
2196	$text = 'OK';
2197	$header = '200'; }
2198	elseif ( 410 == $header )
2199	$text = 'Gone';
2200
2201	@header("HTTP/1.1 $header $text");
2202	@header("Status: $header $text");
2203	}
2204
2205
2206	function nocache_headers() {
2207	@ header('Expires: Wed, 11 Jan 1984 05:00:00 GMT');
2208	@ header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
2209	@ header('Cache-Control: no-cache, must-revalidate, max-age=0');
2210	@ header('Pragma: no-cache');
2211	}
2212
2213	function get_usermeta( $user_id, $meta_key = '') {
2214	global $wpdb;
2215	$user_id = (int) $user_id;
2216
2217	if ( !empty($meta_key) ) {
2218	$meta_key = preg_replace('\|a-z0-9_\|i', '', $meta_key);
2219	$metas = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
2220	} else {
2221	$metas = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id'");
2222	}
2223
2224	if ( empty($metas) ) {
2225	if ( empty($meta_key) )
2226	return array();
2227	else
2228	return '';
2229	}
2230
2231	foreach ($metas as $index => $meta) {
2232	@ $value = unserialize($meta->meta_value);
2233	if ( $value === FALSE )
2234	$value = $meta->meta_value;
2235
2236	$values[] = $value;
2237	}
2238
2239	if ( count($values) == 1 )
2240	return $values[0];
2241	else
2242	return $values;
2243	}
2244
2245	function update_usermeta( $user_id, $meta_key, $meta_value ) {
2246	global $wpdb;
2247	if ( !is_numeric( $user_id ) )
2248	return false;
2249	$meta_key = preg_replace('\|[^a-z0-9_]\|i', '', $meta_key);
2250
2251	if ( is_array($meta_value) \|\| is_object($meta_value) )
2252	$meta_value = serialize($meta_value);
2253	$meta_value = trim( $meta_value );
2254
2255	if (empty($meta_value)) {
2256	delete_usermeta($user_id, $meta_key);
2257	}
2258
2259	$cur = $wpdb->get_row("SELECT * FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
2260	if ( !$cur ) {
2261	$wpdb->query("INSERT INTO $wpdb->usermeta ( user_id, meta_key, meta_value )
2262	VALUES
2263	( '$user_id', '$meta_key', '$meta_value' )");
2264	} else if ( $cur->meta_value != $meta_value ) {
2265	$wpdb->query("UPDATE $wpdb->usermeta SET meta_value = '$meta_value' WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
2266	} else {
2267	return false;
2268	}
2269
2270	$user = get_userdata($user_id);
2271	wp_cache_delete($user_id, 'users');
2272	wp_cache_delete($user->user_login, 'userlogins');
2273
2274	return true;
2275	}
2276
2277	function delete_usermeta( $user_id, $meta_key, $meta_value = '' ) {
2278	global $wpdb;
2279	if ( !is_numeric( $user_id ) )
2280	return false;
2281	$meta_key = preg_replace('\|[^a-z0-9_]\|i', '', $meta_key);
2282
2283	if ( is_array($meta_value) \|\| is_object($meta_value) )
2284	$meta_value = serialize($meta_value);
2285	$meta_value = trim( $meta_value );
2286
2287	if ( ! empty($meta_value) )
2288	$wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key' AND meta_value = '$meta_value'");
2289	else
2290	$wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
2291
2292	$user = get_userdata($user_id);
2293	wp_cache_delete($user_id, 'users');
2294	wp_cache_delete($user->user_login, 'userlogins');
2295
2296	return true;
2297	}
2298
2299	function register_activation_hook($file, $function) {
2300	$file = plugin_basename($file);
2301
2302	add_action('activate_' . $file, $function);
2303	}
2304
2305	function register_deactivation_hook($file, $function) {
2306	$file = plugin_basename($file);
2307
2308	add_action('deactivate_' . $file, $function);
2309	}
2310
2311	function plugin_basename($file) {
2312	$file = preg_replace('\|\\\\+\|', '\\\\', $file);
2313	$file = preg_replace('/^.*wp-content[\\\\\/]plugins[\\\\\/]/', '', $file);
2314	return $file;
2315	}
2316
2317	function get_num_queries() {
2318	global $wpdb;
2319	return $wpdb->num_queries;
2320	}
2321
2322	function wp_nonce_url($actionurl, $action = -1) {
2323	return wp_specialchars(add_query_arg('_wpnonce', wp_create_nonce($action), $actionurl));
2324	}
2325
2326	function wp_nonce_field($action = -1) {
2327	echo '<input type="hidden" name="_wpnonce" value="' . wp_create_nonce($action) . '" />';
2328	wp_referer_field();
2329	}
2330
2331	function wp_referer_field() {
2332	$ref = wp_specialchars($_SERVER['REQUEST_URI']);
2333	echo '<input type="hidden" name="_wp_http_referer" value="'. $ref . '" />';
2334	if ( wp_get_original_referer() ) {
2335	$original_ref = wp_specialchars(stripslashes(wp_get_original_referer()));
2336	echo '<input type="hidden" name="_wp_original_http_referer" value="'. $original_ref . '" />';
2337	}
2338	}
2339
2340	function wp_original_referer_field() {
2341	echo '<input type="hidden" name="_wp_original_http_referer" value="' . wp_specialchars(stripslashes($_SERVER['REQUEST_URI'])) . '" />';
2342	}
2343
2344	function wp_get_referer() {
2345	foreach ( array($_REQUEST['_wp_http_referer'], $_SERVER['HTTP_REFERER']) as $ref )
2346	if ( !empty($ref) )
2347	return $ref;
2348	return false;
2349	}
2350
2351	function wp_get_original_referer() {
2352	if ( !empty($_REQUEST['_wp_original_http_referer']) )
2353	return $_REQUEST['_wp_original_http_referer'];
2354	return false;
2355	}
2356
2357	function wp_explain_nonce($action) {
2358	if ( $action !== -1 && preg_match('/([a-z]+)-([a-z]+)(_(.+))?/', $action, $matches) ) {
2359	$verb = $matches[1];
2360	$noun = $matches[2];
2361
2362	$trans = array();
2363	$trans['update']['attachment'] = array(__('Are you sure you want to edit this attachment: "%s"?'), 'get_the_title');
2364
2365	$trans['add']['category'] = array(__('Are you sure you want to add this category?'), false);
2366	$trans['delete']['category'] = array(__('Are you sure you want to delete this category: "%s"?'), 'get_catname');
2367	$trans['update']['category'] = array(__('Are you sure you want to edit this category: "%s"?'), 'get_catname');
2368
2369	$trans['delete']['comment'] = array(__('Are you sure you want to delete this comment: "%s"?'), 'use_id');
2370	$trans['unapprove']['comment'] = array(__('Are you sure you want to unapprove this comment: "%s"?'), 'use_id');
2371	$trans['approve']['comment'] = array(__('Are you sure you want to approve this comment: "%s"?'), 'use_id');
2372	$trans['update']['comment'] = array(__('Are you sure you want to edit this comment: "%s"?'), 'use_id');
2373	$trans['bulk']['comments'] = array(__('Are you sure you want to bulk modify comments?'), false);
2374	$trans['moderate']['comments'] = array(__('Are you sure you want to moderate comments?'), false);
2375
2376	$trans['add']['bookmark'] = array(__('Are you sure you want to add this bookmark?'), false);
2377	$trans['delete']['bookmark'] = array(__('Are you sure you want to delete this bookmark: "%s"?'), 'use_id');
2378	$trans['update']['bookmark'] = array(__('Are you sure you want to edit this bookmark: "%s"?'), 'use_id');
2379	$trans['bulk']['bookmarks'] = array(__('Are you sure you want to bulk modify bookmarks?'), false);
2380
2381	$trans['add']['page'] = array(__('Are you sure you want to add this page?'), false);
2382	$trans['delete']['page'] = array(__('Are you sure you want to delete this page: "%s"?'), 'get_the_title');
2383	$trans['update']['page'] = array(__('Are you sure you want to edit this page: "%s"?'), 'get_the_title');
2384
2385	$trans['edit']['plugin'] = array(__('Are you sure you want to edit this plugin file: "%s"?'), 'use_id');
2386	$trans['activate']['plugin'] = array(__('Are you sure you want to activate this plugin: "%s"?'), 'use_id');
2387	$trans['deactivate']['plugin'] = array(__('Are you sure you want to deactivate this plugin: "%s"?'), 'use_id');
2388
2389	$trans['add']['post'] = array(__('Are you sure you want to add this post?'), false);
2390	$trans['delete']['post'] = array(__('Are you sure you want to delete this post: "%s"?'), 'get_the_title');
2391	$trans['update']['post'] = array(__('Are you sure you want to edit this post: "%s"?'), 'get_the_title');
2392
2393	$trans['add']['user'] = array(__('Are you sure you want to add this user?'), false);
2394	$trans['delete']['users'] = array(__('Are you sure you want to delete users?'), false);
2395	$trans['bulk']['users'] = array(__('Are you sure you want to bulk modify users?'), false);
2396	$trans['update']['user'] = array(__('Are you sure you want to edit this user: "%s"?'), 'get_author_name');
2397	$trans['update']['profile'] = array(__('Are you sure you want to modify the profile for: "%s"?'), 'get_author_name');
2398
2399	$trans['update']['options'] = array(__('Are you sure you want to edit your settings?'), false);
2400	$trans['update']['permalink'] = array(__('Are you sure you want to change your permalink structure to: %s?'), 'use_id');
2401	$trans['edit']['file'] = array(__('Are you sure you want to edit this file: "%s"?'), 'use_id');
2402	$trans['edit']['theme'] = array(__('Are you sure you want to edit this theme file: "%s"?'), 'use_id');
2403	$trans['switch']['theme'] = array(__('Are you sure you want to switch to this theme: "%s"?'), 'use_id');
2404
2405	if ( isset($trans[$verb][$noun]) ) {
2406	if ( !empty($trans[$verb][$noun][1]) ) {
2407	$lookup = $trans[$verb][$noun][1];
2408	$object = $matches[4];
2409	if ( 'use_id' != $lookup )
2410	$object = call_user_func($lookup, $object);
2411	return sprintf($trans[$verb][$noun][0], $object);
2412	} else {
2413	return $trans[$verb][$noun][0];
2414	}
2415	}
2416	}
2417
2418	return __('Are you sure you want to do this');
2419	}
2420
2421	function wp_nonce_ays($action) {
2422	global $pagenow, $menu, $submenu, $parent_file, $submenu_file;
2423
2424	$adminurl = get_settings('siteurl') . '/wp-admin';
2425	if ( wp_get_referer() )
2426	$adminurl = wp_get_referer();
2427
2428	$title = __('WordPress Confirmation');
2429	// Remove extra layer of slashes.
2430	$_POST = stripslashes_deep($_POST );
2431	if ( $_POST ) {
2432	$q = http_build_query($_POST);
2433	$q = explode( ini_get('arg_separator.output'), $q);
2434	$html .= "\t<form method='post' action='$pagenow'>\n";
2435	foreach ( (array) $q as $a ) {
2436	$v = substr(strstr($a, '='), 1);
2437	$k = substr($a, 0, -(strlen($v)+1));
2438	$html .= "\t\t<input type='hidden' name='" . wp_specialchars( urldecode($k), 1 ) . "' value='" . wp_specialchars( urldecode($v), 1 ) . "' />\n";
2439	}
2440	$html .= "\t\t<input type='hidden' name='_wpnonce' value='" . wp_create_nonce($action) . "' />\n";
2441	$html .= "\t\t<div id='message' class='confirm fade'>\n\t\t<p>" . wp_explain_nonce($action) . "</p>\n\t\t<p><a href='$adminurl'>" . __('No') . "</a> <input type='submit' value='" . __('Yes') . "' /></p>\n\t\t</div>\n\t</form>\n";
2442	} else {
2443	$html .= "\t<div id='message' class='confirm fade'>\n\t<p>" . wp_explain_nonce($action) . "</p>\n\t<p><a href='$adminurl'>" . __('No') . "</a> <a href='" . add_query_arg( '_wpnonce', wp_create_nonce($action), $_SERVER['REQUEST_URI'] ) . "'>" . __('Yes') . "</a></p>\n\t</div>\n";
2444	}
2445	$html .= "</body>\n</html>";
2446	wp_die($html, $title);
2447	}
2448
2449	function wp_die($message, $title = '') {
2450	header('Content-Type: text/html; charset=utf-8');
2451
2452	if ( empty($title) )
2453	$title = __('WordPress &rsaquo; Error');
2454	?>
2455	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2456	<html xmlns="http://www.w3.org/1999/xhtml">
2457	<head>
2458	<title><?php echo $title ?></title>
2459	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
2460	<style media="screen" type="text/css">
2461	<!--
2462	html {
2463	background: #eee;
2464	}
2465	body {
2466	background: #fff;
2467	color: #000;
2468	font-family: Georgia, "Times New Roman", Times, serif;
2469	margin-left: 25%;
2470	margin-right: 25%;
2471	padding: .2em 2em;
2472	}
2473
2474	h1 {
2475	color: #006;
2476	font-size: 18px;
2477	font-weight: lighter;
2478	}
2479
2480	h2 {
2481	font-size: 16px;
2482	}
2483
2484	p, li, dt {
2485	line-height: 140%;
2486	padding-bottom: 2px;
2487	}
2488
2489	ul, ol {
2490	padding: 5px 5px 5px 20px;
2491	}
2492	#logo {
2493	margin-bottom: 2em;
2494	}
2495	-->
2496	</style>
2497	</head>
2498	<body>
2499	<h1 id="logo"><img alt="WordPress" src="<?php echo get_settings('siteurl'); ?>/wp-admin/images/wordpress-logo.png" /></h1>
2500	<p><?php echo $message; ?></p>
2501	</body>
2502	</html>
2503	<?php
2504
2505	die();
2506	}
2507
2508	?>

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