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mp-wp/wp-includes/link-template.php

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1<?php
2/**
3 * WordPress Link Template Functions
4 *
5 * @package WordPress
6 * @subpackage Template
7 */
8
9/**
10 * Display the permalink for the current post.
11 *
12 * @since 1.2.0
13 * @uses apply_filters() Calls 'the_permalink' filter on the permalink string.
14 */
15function the_permalink() {
16 echo apply_filters('the_permalink', get_permalink());
17}
18
19/**
20 * Retrieve trailing slash string, if blog set for adding trailing slashes.
21 *
22 * Conditionally adds a trailing slash if the permalink structure has a trailing
23 * slash, strips the trailing slash if not. The string is passed through the
24 * 'user_trailingslashit' filter. Will remove trailing slash from string, if
25 * blog is not set to have them.
26 *
27 * @since 2.2.0
28 * @uses $wp_rewrite
29 *
30 * @param $string String a URL with or without a trailing slash.
31 * @param $type_of_url String the type of URL being considered (e.g. single, category, etc) for use in the filter.
32 * @return string
33 */
34function user_trailingslashit($string, $type_of_url = '') {
35 global $wp_rewrite;
36 if ( $wp_rewrite->use_trailing_slashes )
37 $string = trailingslashit($string);
38 else
39 $string = untrailingslashit($string);
40
41 // Note that $type_of_url can be one of following:
42 // single, single_trackback, single_feed, single_paged, feed, category, page, year, month, day, paged
43 $string = apply_filters('user_trailingslashit', $string, $type_of_url);
44 return $string;
45}
46
47/**
48 * Display permalink anchor for current post.
49 *
50 * The permalink mode title will use the post title for the 'a' element 'id'
51 * attribute. The id mode uses 'post-' with the post ID for the 'id' attribute.
52 *
53 * @since 0.71
54 *
55 * @param string $mode Permalink mode can be either 'title', 'id', or default, which is 'id'.
56 */
57function permalink_anchor($mode = 'id') {
58 global $post;
59 switch ( strtolower($mode) ) {
60 case 'title':
61 $title = sanitize_title($post->post_title) . '-' . $post->ID;
62 echo '<a id="'.$title.'"></a>';
63 break;
64 case 'id':
65 default:
66 echo '<a id="post-' . $post->ID . '"></a>';
67 break;
68 }
69}
70
71/**
72 * Retrieve full permalink for current post or post ID.
73 *
74 * @since 1.0.0
75 *
76 * @param int $id Optional. Post ID.
77 * @param bool $leavename Optional, defaults to false. Whether to keep post name or page name.
78 * @return string
79 */
80function get_permalink($id = 0, $leavename = false) {
81 $rewritecode = array(
82 '%year%',
83 '%monthnum%',
84 '%day%',
85 '%hour%',
86 '%minute%',
87 '%second%',
88 $leavename? '' : '%postname%',
89 '%post_id%',
90 '%category%',
91 '%author%',
92 $leavename? '' : '%pagename%',
93 );
94
95 $post = &get_post($id);
96
97 if ( empty($post->ID) ) return false;
98
99 if ( $post->post_type == 'page' )
100 return get_page_link($post->ID, $leavename);
101 elseif ($post->post_type == 'attachment')
102 return get_attachment_link($post->ID);
103
104 $permalink = get_option('permalink_structure');
105
106 if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending')) ) {
107 $unixtime = strtotime($post->post_date);
108
109 $category = '';
110 if ( strpos($permalink, '%category%') !== false ) {
111 $cats = get_the_category($post->ID);
112 if ( $cats ) {
113 usort($cats, '_usort_terms_by_ID'); // order by ID
114 $category = $cats[0]->slug;
115 if ( $parent = $cats[0]->parent )
116 $category = get_category_parents($parent, false, '/', true) . $category;
117 }
118 // show default category in permalinks, without
119 // having to assign it explicitly
120 if ( empty($category) ) {
121 $default_category = get_category( get_option( 'default_category' ) );
122 $category = is_wp_error( $default_category ) ? '' : $default_category->slug;
123 }
124 }
125
126 $author = '';
127 if ( strpos($permalink, '%author%') !== false ) {
128 $authordata = get_userdata($post->post_author);
129 $author = $authordata->user_nicename;
130 }
131
132 $date = explode(" ",date('Y m d H i s', $unixtime));
133 $rewritereplace =
134 array(
135 $date[0],
136 $date[1],
137 $date[2],
138 $date[3],
139 $date[4],
140 $date[5],
141 $post->post_name,
142 $post->ID,
143 $category,
144 $author,
145 $post->post_name,
146 );
147 $permalink = get_option('home') . str_replace($rewritecode, $rewritereplace, $permalink);
148 $permalink = user_trailingslashit($permalink, 'single');
149 return apply_filters('post_link', $permalink, $post, $leavename);
150 } else { // if they're not using the fancy permalink option
151 $permalink = get_option('home') . '/?p=' . $post->ID;
152 return apply_filters('post_link', $permalink, $post, $leavename);
153 }
154}
155
156/**
157 * Retrieve permalink from post ID.
158 *
159 * @since 1.0.0
160 *
161 * @param int $post_id Optional. Post ID.
162 * @param mixed $deprecated Not used.
163 * @return string
164 */
165function post_permalink($post_id = 0, $deprecated = '') {
166 return get_permalink($post_id);
167}
168
169/**
170 * Retrieve the permalink for current page or page ID.
171 *
172 * Respects page_on_front. Use this one.
173 *
174 * @since 1.5.0
175 *
176 * @param int $id Optional. Post ID.
177 * @param bool $leavename Optional, defaults to false. Whether to keep post name or page name.
178 * @return string
179 */
180function get_page_link($id = false, $leavename = false) {
181 global $post;
182
183 $id = (int) $id;
184 if ( !$id )
185 $id = (int) $post->ID;
186
187 if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') )
188 $link = get_option('home');
189 else
190 $link = _get_page_link( $id , $leavename );
191
192 return apply_filters('page_link', $link, $id);
193}
194
195/**
196 * Retrieve the page permalink.
197 *
198 * Ignores page_on_front. Internal use only.
199 *
200 * @since 2.1.0
201 * @access private
202 *
203 * @param int $id Optional. Post ID.
204 * @param bool $leavename Optional. Leave name.
205 * @return string
206 */
207function _get_page_link( $id = false, $leavename = false ) {
208 global $post, $wp_rewrite;
209
210 if ( !$id )
211 $id = (int) $post->ID;
212 else
213 $post = &get_post($id);
214
215 $pagestruct = $wp_rewrite->get_page_permastruct();
216
217 if ( '' != $pagestruct && isset($post->post_status) && 'draft' != $post->post_status ) {
218 $link = get_page_uri($id);
219 $link = ( $leavename ) ? $pagestruct : str_replace('%pagename%', $link, $pagestruct);
220 $link = get_option('home') . "/$link";
221 $link = user_trailingslashit($link, 'page');
222 } else {
223 $link = get_option('home') . "/?page_id=$id";
224 }
225
226 return apply_filters( '_get_page_link', $link, $id );
227}
228
229/**
230 * Retrieve permalink for attachment.
231 *
232 * This can be used in the WordPress Loop or outside of it.
233 *
234 * @since 2.0.0
235 *
236 * @param int $id Optional. Post ID.
237 * @return string
238 */
239function get_attachment_link($id = false) {
240 global $post, $wp_rewrite;
241
242 $link = false;
243
244 if (! $id) {
245 $id = (int) $post->ID;
246 }
247
248 $object = get_post($id);
249 if ( $wp_rewrite->using_permalinks() && ($object->post_parent > 0) && ($object->post_parent != $id) ) {
250 $parent = get_post($object->post_parent);
251 if ( 'page' == $parent->post_type )
252 $parentlink = _get_page_link( $object->post_parent ); // Ignores page_on_front
253 else
254 $parentlink = get_permalink( $object->post_parent );
255 if ( is_numeric($object->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') )
256 $name = 'attachment/' . $object->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker
257 else
258 $name = $object->post_name;
259 if (strpos($parentlink, '?') === false)
260 $link = user_trailingslashit( trailingslashit($parentlink) . $name );
261 }
262
263 if (! $link ) {
264 $link = get_bloginfo('url') . "/?attachment_id=$id";
265 }
266
267 return apply_filters('attachment_link', $link, $id);
268}
269
270/**
271 * Retrieve the permalink for the year archives.
272 *
273 * @since 1.5.0
274 *
275 * @param int|bool $year False for current year or year for permalink.
276 * @return string
277 */
278function get_year_link($year) {
279 global $wp_rewrite;
280 if ( !$year )
281 $year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
282 $yearlink = $wp_rewrite->get_year_permastruct();
283 if ( !empty($yearlink) ) {
284 $yearlink = str_replace('%year%', $year, $yearlink);
285 return apply_filters('year_link', get_option('home') . user_trailingslashit($yearlink, 'year'), $year);
286 } else {
287 return apply_filters('year_link', get_option('home') . '/?m=' . $year, $year);
288 }
289}
290
291/**
292 * Retrieve the permalink for the month archives with year.
293 *
294 * @since 1.0.0
295 *
296 * @param bool|int $year False for current year. Integer of year.
297 * @param bool|int $month False for current month. Integer of month.
298 * @return string
299 */
300function get_month_link($year, $month) {
301 global $wp_rewrite;
302 if ( !$year )
303 $year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
304 if ( !$month )
305 $month = gmdate('m', time()+(get_option('gmt_offset') * 3600));
306 $monthlink = $wp_rewrite->get_month_permastruct();
307 if ( !empty($monthlink) ) {
308 $monthlink = str_replace('%year%', $year, $monthlink);
309 $monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
310 return apply_filters('month_link', get_option('home') . user_trailingslashit($monthlink, 'month'), $year, $month);
311 } else {
312 return apply_filters('month_link', get_option('home') . '/?m=' . $year . zeroise($month, 2), $year, $month);
313 }
314}
315
316/**
317 * Retrieve the permalink for the day archives with year and month.
318 *
319 * @since 1.0.0
320 *
321 * @param bool|int $year False for current year. Integer of year.
322 * @param bool|int $month False for current month. Integer of month.
323 * @param bool|int $day False for current day. Integer of day.
324 * @return string
325 */
326function get_day_link($year, $month, $day) {
327 global $wp_rewrite;
328 if ( !$year )
329 $year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
330 if ( !$month )
331 $month = gmdate('m', time()+(get_option('gmt_offset') * 3600));
332 if ( !$day )
333 $day = gmdate('j', time()+(get_option('gmt_offset') * 3600));
334
335 $daylink = $wp_rewrite->get_day_permastruct();
336 if ( !empty($daylink) ) {
337 $daylink = str_replace('%year%', $year, $daylink);
338 $daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink);
339 $daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
340 return apply_filters('day_link', get_option('home') . user_trailingslashit($daylink, 'day'), $year, $month, $day);
341 } else {
342 return apply_filters('day_link', get_option('home') . '/?m=' . $year . zeroise($month, 2) . zeroise($day, 2), $year, $month, $day);
343 }
344}
345
346/**
347 * Retrieve the permalink for the feed type.
348 *
349 * @since 1.5.0
350 *
351 * @param string $feed Optional, defaults to default feed. Feed type.
352 * @return string
353 */
354function get_feed_link($feed = '') {
355 global $wp_rewrite;
356
357 $permalink = $wp_rewrite->get_feed_permastruct();
358 if ( '' != $permalink ) {
359 if ( false !== strpos($feed, 'comments_') ) {
360 $feed = str_replace('comments_', '', $feed);
361 $permalink = $wp_rewrite->get_comment_feed_permastruct();
362 }
363
364 if ( get_default_feed() == $feed )
365 $feed = '';
366
367 $permalink = str_replace('%feed%', $feed, $permalink);
368 $permalink = preg_replace('#/+#', '/', "/$permalink");
369 $output = get_option('home') . user_trailingslashit($permalink, 'feed');
370 } else {
371 if ( empty($feed) )
372 $feed = get_default_feed();
373
374 if ( false !== strpos($feed, 'comments_') )
375 $feed = str_replace('comments_', 'comments-', $feed);
376
377 $output = get_option('home') . "/?feed={$feed}";
378 }
379
380 return apply_filters('feed_link', $output, $feed);
381}
382
383/**
384 * Retrieve the permalink for the post comments feed.
385 *
386 * @since 2.2.0
387 *
388 * @param int $post_id Optional. Post ID.
389 * @param string $feed Optional. Feed type.
390 * @return string
391 */
392function get_post_comments_feed_link($post_id = '', $feed = '') {
393 global $id;
394
395 if ( empty($post_id) )
396 $post_id = (int) $id;
397
398 if ( empty($feed) )
399 $feed = get_default_feed();
400
401 if ( '' != get_option('permalink_structure') ) {
402 $url = trailingslashit( get_permalink($post_id) ) . 'feed';
403 if ( $feed != get_default_feed() )
404 $url .= "/$feed";
405 $url = user_trailingslashit($url, 'single_feed');
406 } else {
407 $type = get_post_field('post_type', $post_id);
408 if ( 'page' == $type )
409 $url = get_option('home') . "/?feed=$feed&amp;page_id=$post_id";
410 else
411 $url = get_option('home') . "/?feed=$feed&amp;p=$post_id";
412 }
413
414 return apply_filters('post_comments_feed_link', $url);
415}
416
417/**
418 * Display the comment feed link for a post.
419 *
420 * Prints out the comment feed link for a post. Link text is placed in the
421 * anchor. If no link text is specified, default text is used. If no post ID is
422 * specified, the current post is used.
423 *
424 * @package WordPress
425 * @subpackage Feed
426 * @since 2.5.0
427 *
428 * @param string $link_text Descriptive text.
429 * @param int $post_id Optional post ID. Default to current post.
430 * @param string $feed Optional. Feed format.
431 * @return string Link to the comment feed for the current post.
432*/
433function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) {
434 $url = get_post_comments_feed_link($post_id, $feed);
435 if ( empty($link_text) )
436 $link_text = __('Comments Feed');
437
438 echo "<a href='$url'>$link_text</a>";
439}
440
441/**
442 * Retrieve the feed link for a given author.
443 *
444 * Returns a link to the feed for all posts by a given author. A specific feed
445 * can be requested or left blank to get the default feed.
446 *
447 * @package WordPress
448 * @subpackage Feed
449 * @since 2.5.0
450 *
451 * @param int $author_id ID of an author.
452 * @param string $feed Optional. Feed type.
453 * @return string Link to the feed for the author specified by $author_id.
454*/
455function get_author_feed_link( $author_id, $feed = '' ) {
456 $author_id = (int) $author_id;
457 $permalink_structure = get_option('permalink_structure');
458
459 if ( empty($feed) )
460 $feed = get_default_feed();
461
462 if ( '' == $permalink_structure ) {
463 $link = get_option('home') . "?feed=$feed&amp;author=" . $author_id;
464 } else {
465 $link = get_author_posts_url($author_id);
466 if ( $feed == get_default_feed() )
467 $feed_link = 'feed';
468 else
469 $feed_link = "feed/$feed";
470
471 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
472 }
473
474 $link = apply_filters('author_feed_link', $link, $feed);
475
476 return $link;
477}
478
479/**
480 * Retrieve the feed link for a category.
481 *
482 * Returns a link to the feed for all post in a given category. A specific feed
483 * can be requested or left blank to get the default feed.
484 *
485 * @package WordPress
486 * @subpackage Feed
487 * @since 2.5.0
488 *
489 * @param int $cat_id ID of a category.
490 * @param string $feed Optional. Feed type.
491 * @return string Link to the feed for the category specified by $cat_id.
492*/
493function get_category_feed_link($cat_id, $feed = '') {
494 $cat_id = (int) $cat_id;
495
496 $category = get_category($cat_id);
497
498 if ( empty($category) || is_wp_error($category) )
499 return false;
500
501 if ( empty($feed) )
502 $feed = get_default_feed();
503
504 $permalink_structure = get_option('permalink_structure');
505
506 if ( '' == $permalink_structure ) {
507 $link = get_option('home') . "?feed=$feed&amp;cat=" . $cat_id;
508 } else {
509 $link = get_category_link($cat_id);
510 if( $feed == get_default_feed() )
511 $feed_link = 'feed';
512 else
513 $feed_link = "feed/$feed";
514
515 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
516 }
517
518 $link = apply_filters('category_feed_link', $link, $feed);
519
520 return $link;
521}
522
523/**
524 * Retrieve permalink for feed of tag.
525 *
526 * @since 2.3.0
527 *
528 * @param int $tag_id Tag ID.
529 * @param string $feed Optional. Feed type.
530 * @return string
531 */
532function get_tag_feed_link($tag_id, $feed = '') {
533 $tag_id = (int) $tag_id;
534
535 $tag = get_tag($tag_id);
536
537 if ( empty($tag) || is_wp_error($tag) )
538 return false;
539
540 $permalink_structure = get_option('permalink_structure');
541
542 if ( empty($feed) )
543 $feed = get_default_feed();
544
545 if ( '' == $permalink_structure ) {
546 $link = get_option('home') . "?feed=$feed&amp;tag=" . $tag->slug;
547 } else {
548 $link = get_tag_link($tag->term_id);
549 if ( $feed == get_default_feed() )
550 $feed_link = 'feed';
551 else
552 $feed_link = "feed/$feed";
553 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
554 }
555
556 $link = apply_filters('tag_feed_link', $link, $feed);
557
558 return $link;
559}
560
561/**
562 * Retrieve edit tag link.
563 *
564 * @since 2.7.0
565 *
566 * @param int $tag_id Tag ID
567 * @return string
568 */
569function get_edit_tag_link( $tag_id = 0 ) {
570 $tag = get_term($tag_id, 'post_tag');
571
572 if ( !current_user_can('manage_categories') )
573 return;
574
575 $location = admin_url('edit-tags.php?action=edit&amp;tag_ID=') . $tag->term_id;
576 return apply_filters( 'get_edit_tag_link', $location );
577}
578
579/**
580 * Display or retrieve edit tag link with formatting.
581 *
582 * @since 2.7.0
583 *
584 * @param string $link Optional. Anchor text.
585 * @param string $before Optional. Display before edit link.
586 * @param string $after Optional. Display after edit link.
587 * @param int|object $tag Tag object or ID
588 * @return string|null HTML content, if $echo is set to false.
589 */
590function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
591 $tag = get_term($tag, 'post_tag');
592
593 if ( !current_user_can('manage_categories') )
594 return;
595
596 if ( empty($link) )
597 $link = __('Edit This');
598
599 $link = '<a href="' . get_edit_tag_link( $tag->term_id ) . '" title="' . __( 'Edit tag' ) . '">' . $link . '</a>';
600 echo $before . apply_filters( 'edit_tag_link', $link, $tag->term_id ) . $after;
601}
602
603/**
604 * Retrieve the permalink for the feed of the search results.
605 *
606 * @since 2.5.0
607 *
608 * @param string $search_query Optional. Search query.
609 * @param string $feed Optional. Feed type.
610 * @return string
611 */
612function get_search_feed_link($search_query = '', $feed = '') {
613 if ( empty($search_query) )
614 $search = attribute_escape(get_search_query());
615 else
616 $search = attribute_escape(stripslashes($search_query));
617
618 if ( empty($feed) )
619 $feed = get_default_feed();
620
621 $link = get_option('home') . "?s=$search&amp;feed=$feed";
622
623 $link = apply_filters('search_feed_link', $link);
624
625 return $link;
626}
627
628/**
629 * Retrieve the permalink for the comments feed of the search results.
630 *
631 * @since 2.5.0
632 *
633 * @param string $search_query Optional. Search query.
634 * @param string $feed Optional. Feed type.
635 * @return string
636 */
637function get_search_comments_feed_link($search_query = '', $feed = '') {
638 if ( empty($search_query) )
639 $search = attribute_escape(get_search_query());
640 else
641 $search = attribute_escape(stripslashes($search_query));
642
643 if ( empty($feed) )
644 $feed = get_default_feed();
645
646 $link = get_option('home') . "?s=$search&amp;feed=comments-$feed";
647
648 $link = apply_filters('search_feed_link', $link);
649
650 return $link;
651}
652
653/**
654 * Retrieve edit posts link for post.
655 *
656 * Can be used within the WordPress loop or outside of it. Can be used with
657 * pages, posts, attachments, and revisions.
658 *
659 * @since 2.3.0
660 *
661 * @param int $id Optional. Post ID.
662 * @param string $context Optional, default to display. How to write the '&', defaults to '&amp;'.
663 * @return string
664 */
665function get_edit_post_link( $id = 0, $context = 'display' ) {
666 if ( !$post = &get_post( $id ) )
667 return;
668
669 if ( 'display' == $context )
670 $action = 'action=edit&amp;';
671 else
672 $action = 'action=edit&';
673
674 switch ( $post->post_type ) :
675 case 'page' :
676 if ( !current_user_can( 'edit_page', $post->ID ) )
677 return;
678 $file = 'page';
679 $var = 'post';
680 break;
681 case 'attachment' :
682 if ( !current_user_can( 'edit_post', $post->ID ) )
683 return;
684 $file = 'media';
685 $var = 'attachment_id';
686 break;
687 case 'revision' :
688 if ( !current_user_can( 'edit_post', $post->ID ) )
689 return;
690 $file = 'revision';
691 $var = 'revision';
692 $action = '';
693 break;
694 default :
695 if ( !current_user_can( 'edit_post', $post->ID ) )
696 return;
697 $file = 'post';
698 $var = 'post';
699 break;
700 endswitch;
701
702 return apply_filters( 'get_edit_post_link', admin_url("$file.php?{$action}$var=$post->ID"), $post->ID, $context );
703}
704
705/**
706 * Retrieve edit posts link for post.
707 *
708 * @since 1.0.0
709 *
710 * @param string $link Optional. Anchor text.
711 * @param string $before Optional. Display before edit link.
712 * @param string $after Optional. Display after edit link.
713 */
714function edit_post_link( $link = 'Edit This', $before = '', $after = '' ) {
715 global $post;
716
717 if ( $post->post_type == 'page' ) {
718 if ( !current_user_can( 'edit_page', $post->ID ) )
719 return;
720 } else {
721 if ( !current_user_can( 'edit_post', $post->ID ) )
722 return;
723 }
724
725 $link = '<a href="' . get_edit_post_link( $post->ID ) . '" title="' . attribute_escape( __( 'Edit post' ) ) . '">' . $link . '</a>';
726 echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after;
727}
728
729/**
730 * Retrieve edit comment link.
731 *
732 * @since 2.3.0
733 *
734 * @param int $comment_id Optional. Comment ID.
735 * @return string
736 */
737function get_edit_comment_link( $comment_id = 0 ) {
738 $comment = &get_comment( $comment_id );
739 $post = &get_post( $comment->comment_post_ID );
740
741 if ( $post->post_type == 'page' ) {
742 if ( !current_user_can( 'edit_page', $post->ID ) )
743 return;
744 } else {
745 if ( !current_user_can( 'edit_post', $post->ID ) )
746 return;
747 }
748
749 $location = admin_url('comment.php?action=editcomment&amp;c=') . $comment->comment_ID;
750 return apply_filters( 'get_edit_comment_link', $location );
751}
752
753/**
754 * Display or retrieve edit comment link with formatting.
755 *
756 * @since 1.0.0
757 *
758 * @param string $link Optional. Anchor text.
759 * @param string $before Optional. Display before edit link.
760 * @param string $after Optional. Display after edit link.
761 * @return string|null HTML content, if $echo is set to false.
762 */
763function edit_comment_link( $link = 'Edit This', $before = '', $after = '' ) {
764 global $comment, $post;
765
766 if ( $post->post_type == 'attachment' ) {
767 } elseif ( $post->post_type == 'page' ) {
768 if ( !current_user_can( 'edit_page', $post->ID ) )
769 return;
770 } else {
771 if ( !current_user_can( 'edit_post', $post->ID ) )
772 return;
773 }
774
775 $link = '<a href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . __( 'Edit comment' ) . '">' . $link . '</a>';
776 echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after;
777}
778
779/**
780 * Display edit bookmark (literally a URL external to blog) link.
781 *
782 * @since 2.7.0
783 *
784 * @param int $link Optional. Bookmark ID.
785 * @return string
786 */
787function get_edit_bookmark_link( $link = 0 ) {
788 $link = get_bookmark( $link );
789
790 if ( !current_user_can('manage_links') )
791 return;
792
793 $location = admin_url('link.php?action=edit&amp;link_id=') . $link->link_id;
794 return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id );
795}
796
797/**
798 * Display edit bookmark (literally a URL external to blog) link anchor content.
799 *
800 * @since 2.7.0
801 *
802 * @param string $link Optional. Anchor text.
803 * @param string $before Optional. Display before edit link.
804 * @param string $after Optional. Display after edit link.
805 * @param int $bookmark Optional. Bookmark ID.
806 */
807function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) {
808 $bookmark = get_bookmark($bookmark);
809
810 if ( !current_user_can('manage_links') )
811 return;
812
813 if ( empty($link) )
814 $link = __('Edit This');
815
816 $link = '<a href="' . get_edit_bookmark_link( $link ) . '" title="' . __( 'Edit link' ) . '">' . $link . '</a>';
817 echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
818}
819
820// Navigation links
821
822/**
823 * Retrieve previous post link that is adjacent to current post.
824 *
825 * @since 1.5.0
826 *
827 * @param bool $in_same_cat Optional. Whether link should be in same category.
828 * @param string $excluded_categories Optional. Excluded categories IDs.
829 * @return string
830 */
831function get_previous_post($in_same_cat = false, $excluded_categories = '') {
832 return get_adjacent_post($in_same_cat, $excluded_categories);
833}
834
835/**
836 * Retrieve next post link that is adjacent to current post.
837 *
838 * @since 1.5.0
839 *
840 * @param bool $in_same_cat Optional. Whether link should be in same category.
841 * @param string $excluded_categories Optional. Excluded categories IDs.
842 * @return string
843 */
844function get_next_post($in_same_cat = false, $excluded_categories = '') {
845 return get_adjacent_post($in_same_cat, $excluded_categories, false);
846}
847
848/**
849 * Retrieve adjacent post link.
850 *
851 * Can either be next or previous post link.
852 *
853 * @since 2.5.0
854 *
855 * @param bool $in_same_cat Optional. Whether link should be in same category.
856 * @param string $excluded_categories Optional. Excluded categories IDs.
857 * @param bool $previous Optional. Whether to retrieve previous post.
858 * @return string
859 */
860function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) {
861 global $post, $wpdb;
862
863 if( empty($post) || !is_single() || is_attachment() )
864 return null;
865
866 $current_post_date = $post->post_date;
867
868 $join = '';
869 $posts_in_ex_cats_sql = '';
870 if ( $in_same_cat || !empty($excluded_categories) ) {
871 $join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
872
873 if ( $in_same_cat ) {
874 $cat_array = wp_get_object_terms($post->ID, 'category', 'fields=ids');
875 $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
876 }
877
878 $posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'";
879 if ( !empty($excluded_categories) ) {
880 $excluded_categories = array_map('intval', explode(' and ', $excluded_categories));
881 if ( !empty($cat_array) ) {
882 $excluded_categories = array_diff($excluded_categories, $cat_array);
883 $posts_in_ex_cats_sql = '';
884 }
885
886 if ( !empty($excluded_categories) ) {
887 $posts_in_ex_cats_sql = " AND tt.taxonomy = 'category' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
888 }
889 }
890 }
891
892 $adjacent = $previous ? 'previous' : 'next';
893 $op = $previous ? '<' : '>';
894 $order = $previous ? 'DESC' : 'ASC';
895
896 $join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_cat, $excluded_categories );
897 $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date), $in_same_cat, $excluded_categories );
898 $sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
899
900 return $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort");
901}
902
903/**
904 * Display previous post link that is adjacent to the current post.
905 *
906 * @since 1.5.0
907 *
908 * @param string $format Optional. Link anchor format.
909 * @param string $link Optional. Link permalink format.
910 * @param bool $in_same_cat Optional. Whether link should be in same category.
911 * @param string $excluded_categories Optional. Excluded categories IDs.
912 */
913function previous_post_link($format='&laquo; %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
914 adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true);
915}
916
917/**
918 * Display next post link that is adjacent to the current post.
919 *
920 * @since 1.5.0
921 *
922 * @param string $format Optional. Link anchor format.
923 * @param string $link Optional. Link permalink format.
924 * @param bool $in_same_cat Optional. Whether link should be in same category.
925 * @param string $excluded_categories Optional. Excluded categories IDs.
926 */
927function next_post_link($format='%link &raquo;', $link='%title', $in_same_cat = false, $excluded_categories = '') {
928 adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false);
929}
930
931/**
932 * Display adjacent post link.
933 *
934 * Can be either next post link or previous.
935 *
936 * @since 2.5.0
937 *
938 * @param string $format Link anchor format.
939 * @param string $link Link permalink format.
940 * @param bool $in_same_cat Optional. Whether link should be in same category.
941 * @param string $excluded_categories Optional. Excluded categories IDs.
942 * @param bool $previous Optional, default is true. Whether display link to previous post.
943 */
944function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) {
945 if ( $previous && is_attachment() )
946 $post = & get_post($GLOBALS['post']->post_parent);
947 else
948 $post = get_adjacent_post($in_same_cat, $excluded_categories, $previous);
949
950 if ( !$post )
951 return;
952
953 $title = $post->post_title;
954
955 if ( empty($post->post_title) )
956 $title = $previous ? __('Previous Post') : __('Next Post');
957
958 $title = apply_filters('the_title', $title, $post);
959 $date = mysql2date(get_option('date_format'), $post->post_date);
960
961 $string = '<a href="'.get_permalink($post).'">';
962 $link = str_replace('%title', $title, $link);
963 $link = str_replace('%date', $date, $link);
964 $link = $string . $link . '</a>';
965
966 $format = str_replace('%link', $link, $format);
967
968 $adjacent = $previous ? 'previous' : 'next';
969 echo apply_filters( "{$adjacent}_post_link", $format, $link );
970}
971
972/**
973 * Retrieve get links for page numbers.
974 *
975 * @since 1.5.0
976 *
977 * @param int $pagenum Optional. Page ID.
978 * @return string
979 */
980function get_pagenum_link($pagenum = 1) {
981 global $wp_rewrite;
982
983 $pagenum = (int) $pagenum;
984
985 $request = remove_query_arg( 'paged' );
986
987 $home_root = parse_url(get_option('home'));
988 $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
989 $home_root = preg_quote( trailingslashit( $home_root ), '|' );
990
991 $request = preg_replace('|^'. $home_root . '|', '', $request);
992 $request = preg_replace('|^/+|', '', $request);
993
994 if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
995 $base = trailingslashit( get_bloginfo( 'home' ) );
996
997 if ( $pagenum > 1 ) {
998 $result = add_query_arg( 'paged', $pagenum, $base . $request );
999 } else {
1000 $result = $base . $request;
1001 }
1002 } else {
1003 $qs_regex = '|\?.*?$|';
1004 preg_match( $qs_regex, $request, $qs_match );
1005
1006 if ( !empty( $qs_match[0] ) ) {
1007 $query_string = $qs_match[0];
1008 $request = preg_replace( $qs_regex, '', $request );
1009 } else {
1010 $query_string = '';
1011 }
1012
1013 $request = preg_replace( '|page/\d+/?$|', '', $request);
1014 $request = preg_replace( '|^index\.php|', '', $request);
1015 $request = ltrim($request, '/');
1016
1017 $base = trailingslashit( get_bloginfo( 'url' ) );
1018
1019 if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) )
1020 $base .= 'index.php/';
1021
1022 if ( $pagenum > 1 ) {
1023 $request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( 'page/' . $pagenum, 'paged' );
1024 }
1025
1026 $result = $base . $request . $query_string;
1027 }
1028
1029 $result = apply_filters('get_pagenum_link', $result);
1030
1031 return $result;
1032}
1033
1034/**
1035 * Retrieve next posts pages link.
1036 *
1037 * Backported from 2.1.3 to 2.0.10.
1038 *
1039 * @since 2.0.10
1040 *
1041 * @param int $max_page Optional. Max pages.
1042 * @return string
1043 */
1044function get_next_posts_page_link($max_page = 0) {
1045 global $paged;
1046
1047 if ( !is_single() ) {
1048 if ( !$paged )
1049 $paged = 1;
1050 $nextpage = intval($paged) + 1;
1051 if ( !$max_page || $max_page >= $nextpage )
1052 return get_pagenum_link($nextpage);
1053 }
1054}
1055
1056/**
1057 * Display or return the next posts pages link.
1058 *
1059 * @since 0.71
1060 *
1061 * @param int $max_page Optional. Max pages.
1062 * @param boolean $echo Optional. Echo or return;
1063 */
1064function next_posts( $max_page = 0, $echo = true ) {
1065 $output = clean_url( get_next_posts_page_link( $max_page ) );
1066
1067 if ( $echo )
1068 echo $output;
1069 else
1070 return $output;
1071}
1072
1073/**
1074 * Return the next posts pages link.
1075 *
1076 * @since 2.7.0
1077 *
1078 * @param string $label Content for link text.
1079 * @param int $max_page Optional. Max pages.
1080 * @return string|null
1081 */
1082function get_next_posts_link( $label = 'Next Page &raquo;', $max_page = 0 ) {
1083 global $paged, $wp_query;
1084
1085 if ( !$max_page ) {
1086 $max_page = $wp_query->max_num_pages;
1087 }
1088
1089 if ( !$paged )
1090 $paged = 1;
1091
1092 $nextpage = intval($paged) + 1;
1093
1094 if ( !is_single() && ( empty($paged) || $nextpage <= $max_page) ) {
1095 $attr = apply_filters( 'next_posts_link_attributes', '' );
1096 return '<a href="' . next_posts( $max_page, false ) . "\" $attr>". preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $label) .'</a>';
1097 }
1098}
1099
1100/**
1101 * Display the next posts pages link.
1102 *
1103 * @since 0.71
1104 * @uses get_next_posts_link()
1105 *
1106 * @param string $label Content for link text.
1107 * @param int $max_page Optional. Max pages.
1108 */
1109function next_posts_link( $label = 'Next Page &raquo;', $max_page = 0 ) {
1110 echo get_next_posts_link( $label, $max_page );
1111}
1112
1113/**
1114 * Retrieve previous post pages link.
1115 *
1116 * Will only return string, if not on a single page or post.
1117 *
1118 * Backported to 2.0.10 from 2.1.3.
1119 *
1120 * @since 2.0.10
1121 *
1122 * @return string|null
1123 */
1124function get_previous_posts_page_link() {
1125 global $paged;
1126
1127 if ( !is_single() ) {
1128 $nextpage = intval($paged) - 1;
1129 if ( $nextpage < 1 )
1130 $nextpage = 1;
1131 return get_pagenum_link($nextpage);
1132 }
1133}
1134
1135/**
1136 * Display or return the previous posts pages link.
1137 *
1138 * @since 0.71
1139 *
1140 * @param boolean $echo Optional. Echo or return;
1141 */
1142function previous_posts( $echo = true ) {
1143 $output = clean_url( get_previous_posts_page_link() );
1144
1145 if ( $echo )
1146 echo $output;
1147 else
1148 return $output;
1149}
1150
1151/**
1152 * Return the previous posts pages link.
1153 *
1154 * @since 2.7.0
1155 *
1156 * @param string $label Optional. Previous page link text.
1157 * @return string|null
1158 */
1159function get_previous_posts_link( $label = '&laquo; Previous Page' ) {
1160 global $paged;
1161
1162 if ( !is_single() && $paged > 1 ) {
1163 $attr = apply_filters( 'previous_posts_link_attributes', '' );
1164 return '<a href="' . previous_posts( false ) . "\" $attr>". preg_replace( '/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $label ) .'</a>';
1165 }
1166}
1167
1168/**
1169 * Display the previous posts page link.
1170 *
1171 * @since 0.71
1172 * @uses get_previous_posts_link()
1173 *
1174 * @param string $label Optional. Previous page link text.
1175 */
1176function previous_posts_link( $label = '&laquo; Previous Page' ) {
1177 echo get_previous_posts_link( $label );
1178}
1179
1180/**
1181 * Display post pages link navigation for previous and next pages.
1182 *
1183 * @since 0.71
1184 *
1185 * @param string $sep Optional. Separator for posts navigation links.
1186 * @param string $prelabel Optional. Label for previous pages.
1187 * @param string $nxtlabel Optional Label for next pages.
1188 */
1189function posts_nav_link( $sep = ' &#8212; ', $prelabel = '&laquo; Previous Page', $nxtlabel = 'Next Page &raquo;' ) {
1190 global $wp_query;
1191 if ( !is_singular() ) {
1192 $max_num_pages = $wp_query->max_num_pages;
1193 $paged = get_query_var('paged');
1194
1195 //only have sep if there's both prev and next results
1196 if ($paged < 2 || $paged >= $max_num_pages) {
1197 $sep = '';
1198 }
1199
1200 if ( $max_num_pages > 1 ) {
1201 previous_posts_link($prelabel);
1202 echo preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $sep);
1203 next_posts_link($nxtlabel);
1204 }
1205 }
1206}
1207
1208/**
1209 * Retrieve page numbers links.
1210 *
1211 * @since 2.7.0
1212 *
1213 * @param int $pagenum Optional. Page number.
1214 * @return string
1215 */
1216function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
1217 global $post, $wp_rewrite;
1218
1219 $pagenum = (int) $pagenum;
1220
1221 $result = get_permalink( $post->ID );
1222
1223 if ( 'newest' == get_option('default_comments_page') ) {
1224 if ( $pagenum != $max_page ) {
1225 if ( $wp_rewrite->using_permalinks() )
1226 $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
1227 else
1228 $result = add_query_arg( 'cpage', $pagenum, $result );
1229 }
1230 } elseif ( $pagenum > 1 ) {
1231 if ( $wp_rewrite->using_permalinks() )
1232 $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
1233 else
1234 $result = add_query_arg( 'cpage', $pagenum, $result );
1235 }
1236
1237 $result .= '#comments';
1238
1239 $result = apply_filters('get_comments_pagenum_link', $result);
1240
1241 return $result;
1242}
1243
1244/**
1245 * Display link to next comments pages.
1246 *
1247 * @since 2.7.0
1248 *
1249 * @param string $label Optional. Label for link text.
1250 * @param int $max_page Optional. Max page.
1251 */
1252function next_comments_link($label='', $max_page = 0) {
1253 global $wp_query;
1254
1255 if ( !is_singular() )
1256 return;
1257
1258 $page = get_query_var('cpage');
1259
1260 if ( !$page )
1261 $page = 1;
1262
1263 $nextpage = intval($page) + 1;
1264
1265 if ( empty($max_page) )
1266 $max_page = $wp_query->max_num_comment_pages;
1267
1268 if ( empty($max_page) )
1269 $max_page = get_comment_pages_count();
1270
1271 if ( $nextpage > $max_page )
1272 return;
1273
1274 if ( empty($label) )
1275 $label = __('Newer Comments &raquo;');
1276
1277 echo '<a href="' . clean_url( get_comments_pagenum_link( $nextpage, $max_page ) );
1278 $attr = apply_filters( 'next_comments_link_attributes', '' );
1279 echo "\" $attr>". preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $label) .'</a>';
1280}
1281
1282/**
1283 * Display the previous comments page link.
1284 *
1285 * @since 2.7.0
1286 *
1287 * @param string $label Optional. Label for comments link text.
1288 */
1289function previous_comments_link($label='') {
1290
1291 if ( !is_singular() )
1292 return;
1293
1294 $page = get_query_var('cpage');
1295
1296 if ( !$page )
1297 $page = 1;
1298
1299 if ( $page <= 1 )
1300 return;
1301
1302 $prevpage = intval($page) - 1;
1303
1304 if ( empty($label) )
1305 $label = __('&laquo; Older Comments');
1306
1307 echo '<a href="' . clean_url(get_comments_pagenum_link($prevpage));
1308 $attr = apply_filters( 'previous_comments_link_attributes', '' );
1309 echo "\" $attr>". preg_replace('/&([^#])(?![a-z]{1,8};)/', '&#038;$1', $label) .'</a>';
1310}
1311
1312/**
1313 * Create pagination links for the comments on the current post.
1314 *
1315 * @see paginate_links()
1316 * @since 2.7.0
1317 *
1318 * @param string|array $args Optional args. See paginate_links.
1319 * @return string Markup for pagination links.
1320*/
1321function paginate_comments_links($args = array()) {
1322 global $wp_query, $wp_rewrite;
1323
1324 if ( !is_singular() )
1325 return;
1326
1327 $page = get_query_var('cpage');
1328 if ( !$page )
1329 $page = 1;
1330 $max_page = get_comment_pages_count();
1331 $defaults = array(
1332 'base' => add_query_arg( 'cpage', '%#%' ),
1333 'format' => '',
1334 'total' => $max_page,
1335 'current' => $page,
1336 'echo' => true,
1337 'add_fragment' => '#comments'
1338 );
1339 if ( $wp_rewrite->using_permalinks() )
1340 $defaults['base'] = user_trailingslashit(get_permalink() . 'comment-page-%#%', 'commentpaged');
1341
1342 $args = wp_parse_args( $args, $defaults );
1343 $page_links = paginate_links( $args );
1344
1345 if ( $args['echo'] )
1346 echo $page_links;
1347 else
1348 return $page_links;
1349}
1350
1351/**
1352 * Retrieve shortcut link.
1353 *
1354 * Use this in 'a' element 'href' attribute.
1355 *
1356 * @since 2.6.0
1357 *
1358 * @return string
1359 */
1360function get_shortcut_link() {
1361 $link = "javascript:
1362 var d=document,
1363 w=window,
1364 e=w.getSelection,
1365 k=d.getSelection,
1366 x=d.selection,
1367 s=(e?e():(k)?k():(x?x.createRange().text:0)),
1368 f='" . admin_url('press-this.php') . "',
1369 l=d.location,
1370 e=encodeURIComponent,
1371 g=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=2';
1372 function a(){
1373 if(!w.open(g,'t','toolbar=0,resizable=0,scrollbars=1,status=1,width=720,height=570')){
1374 l.href=g;
1375 }
1376 }";
1377 if (strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== false)
1378 $link .= 'setTimeout(a,0);';
1379 else
1380 $link .= 'a();';
1381
1382 $link .= "void(0);";
1383
1384 $link = str_replace(array("\r", "\n", "\t"), '', $link);
1385
1386 return apply_filters('shortcut_link', $link);
1387}
1388
1389/**
1390 * Retrieve the site url.
1391 *
1392 * Returns the 'site_url' option with the appropriate protocol, 'https' if
1393 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
1394 * overridden.
1395 *
1396 * @package WordPress
1397 * @since 2.6.0
1398 *
1399 * @param string $path Optional. Path relative to the site url.
1400 * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
1401 * @return string Site url link with optional path appended.
1402*/
1403function site_url($path = '', $scheme = null) {
1404 // should the list of allowed schemes be maintained elsewhere?
1405 $orig_scheme = $scheme;
1406 if ( !in_array($scheme, array('http', 'https')) ) {
1407 if ( ('login_post' == $scheme) && ( force_ssl_login() || force_ssl_admin() ) )
1408 $scheme = 'https';
1409 elseif ( ('login' == $scheme) && ( force_ssl_admin() ) )
1410 $scheme = 'https';
1411 elseif ( ('admin' == $scheme) && force_ssl_admin() )
1412 $scheme = 'https';
1413 else
1414 $scheme = ( is_ssl() ? 'https' : 'http' );
1415 }
1416
1417 $url = str_replace( 'http://', "{$scheme}://", get_option('siteurl') );
1418
1419 if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
1420 $url .= '/' . ltrim($path, '/');
1421
1422 return apply_filters('site_url', $url, $path, $orig_scheme);
1423}
1424
1425/**
1426 * Retrieve the url to the admin area.
1427 *
1428 * @package WordPress
1429 * @since 2.6.0
1430 *
1431 * @param string $path Optional path relative to the admin url
1432 * @return string Admin url link with optional path appended
1433*/
1434function admin_url($path = '') {
1435 $url = site_url('wp-admin/', 'admin');
1436
1437 if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
1438 $url .= ltrim($path, '/');
1439
1440 return $url;
1441}
1442
1443/**
1444 * Retrieve the url to the includes directory.
1445 *
1446 * @package WordPress
1447 * @since 2.6.0
1448 *
1449 * @param string $path Optional. Path relative to the includes url.
1450 * @return string Includes url link with optional path appended.
1451*/
1452function includes_url($path = '') {
1453 $url = site_url() . '/' . WPINC . '/';
1454
1455 if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
1456 $url .= ltrim($path, '/');
1457
1458 return $url;
1459}
1460
1461/**
1462 * Retrieve the url to the content directory.
1463 *
1464 * @package WordPress
1465 * @since 2.6.0
1466 *
1467 * @param string $path Optional. Path relative to the content url.
1468 * @return string Content url link with optional path appended.
1469*/
1470function content_url($path = '') {
1471 $scheme = ( is_ssl() ? 'https' : 'http' );
1472 $url = WP_CONTENT_URL;
1473 if ( 0 === strpos($url, 'http') ) {
1474 if ( is_ssl() )
1475 $url = str_replace( 'http://', "{$scheme}://", $url );
1476 }
1477
1478 if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
1479 $url .= '/' . ltrim($path, '/');
1480
1481 return $url;
1482}
1483
1484/**
1485 * Retrieve the url to the plugins directory.
1486 *
1487 * @package WordPress
1488 * @since 2.6.0
1489 *
1490 * @param string $path Optional. Path relative to the plugins url.
1491 * @return string Plugins url link with optional path appended.
1492*/
1493function plugins_url($path = '') {
1494 $scheme = ( is_ssl() ? 'https' : 'http' );
1495 $url = WP_PLUGIN_URL;
1496 if ( 0 === strpos($url, 'http') ) {
1497 if ( is_ssl() )
1498 $url = str_replace( 'http://', "{$scheme}://", $url );
1499 }
1500
1501 if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
1502 $url .= '/' . ltrim($path, '/');
1503
1504 return $url;
1505}
1506
1507?>