WordPress 3.0 beta 1 documentation kindly provided to you by Hay Kranen
WordPress 3.0 beta 1 documentation kindly provided to you by Hay Kranen
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PHP Cross Reference of WordPress 3.0 beta 1 |
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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 */ 15 function 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 $type_of_url String the type of URL being considered (e.g. single, category, etc) for use in the filter. 32 * @return string 33 */ 34 function user_trailingslashit($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 $mode Permalink mode can be either 'title', 'id', or default, which is 'id'. 56 */ 57 function permalink_anchor($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 $leavename Optional, defaults to false. Whether to keep post name or page name. 78 * @return string 79 */ 80 function get_permalink($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 $leavename? '' : '%pagename%', 93 ); 94 95 if ( is_object($id) && isset($id->filter) && 'sample' == $id->filter ) { 96 $post = $id; 97 $sample = true; 98 } else { 99 $post = &get_post($id); 100 $sample = false; 101 } 102 103 if ( empty($post->ID) ) 104 return false; 105 106 if ( $post->post_type == 'page' ) 107 return get_page_link($post->ID, $leavename, $sample); 108 elseif ( $post->post_type == 'attachment' ) 109 return get_attachment_link($post->ID); 110 elseif ( in_array($post->post_type, get_post_types( array('_builtin' => false) ) ) ) 111 return get_post_permalink($post, $leavename); 112 113 $permalink = get_option('permalink_structure'); 114 115 $permalink = apply_filters('pre_post_link', $permalink, $post, $leavename); 116 117 if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending', 'auto-draft')) ) { 118 $unixtime = strtotime($post->post_date); 119 120 $category = ''; 121 if ( strpos($permalink, '%category%') !== false ) { 122 $cats = get_the_category($post->ID); 123 if ( $cats ) { 124 usort($cats, '_usort_terms_by_ID'); // order by ID 125 $category = $cats[0]->slug; 126 if ( $parent = $cats[0]->parent ) 127 $category = get_category_parents($parent, false, '/', true) . $category; 128 } 129 // show default category in permalinks, without 130 // having to assign it explicitly 131 if ( empty($category) ) { 132 $default_category = get_category( get_option( 'default_category' ) ); 133 $category = is_wp_error( $default_category ) ? '' : $default_category->slug; 134 } 135 } 136 137 $author = ''; 138 if ( strpos($permalink, '%author%') !== false ) { 139 $authordata = get_userdata($post->post_author); 140 $author = $authordata->user_nicename; 141 } 142 143 $date = explode(" ",date('Y m d H i s', $unixtime)); 144 $rewritereplace = 145 array( 146 $date[0], 147 $date[1], 148 $date[2], 149 $date[3], 150 $date[4], 151 $date[5], 152 $post->post_name, 153 $post->ID, 154 $category, 155 $author, 156 $post->post_name, 157 ); 158 $permalink = home_url( str_replace($rewritecode, $rewritereplace, $permalink) ); 159 $permalink = user_trailingslashit($permalink, 'single'); 160 } else { // if they're not using the fancy permalink option 161 $permalink = home_url('?p=' . $post->ID); 162 } 163 return apply_filters('post_link', $permalink, $post, $leavename); 164 } 165 166 /** 167 * Retrieve the permalink for a post with a custom post type. 168 * 169 * @since 3.0.0 170 * 171 * @param int $id Optional. Post ID. 172 * @param bool $leavename Optional, defaults to false. Whether to keep post name. 173 * @param bool $sample Optional, defaults to false. Is it a sample permalink. 174 * @return string 175 */ 176 function get_post_permalink( $id = 0, $leavename = false, $sample = false ) { 177 global $wp_rewrite; 178 179 $post = &get_post($id); 180 181 if ( is_wp_error( $post ) ) 182 return $post; 183 184 $post_link = $wp_rewrite->get_extra_permastruct($post->post_type); 185 186 $slug = $post->post_name; 187 188 $draft_or_pending = 'draft' == $post->post_status || 'pending' == $post->post_status; 189 190 $post_type = get_post_type_object($post->post_type); 191 192 if ( !empty($post_link) && ( ( isset($post->post_status) && !$draft_or_pending ) || $sample ) ) { 193 if ( ! $leavename ) { 194 if ( $post_type->hierarchical ) 195 $slug = get_page_uri($id); 196 $post_link = str_replace("%$post->post_type%", $slug, $post_link); 197 } 198 $post_link = home_url( user_trailingslashit($post_link) ); 199 } else { 200 if ( $post_type->query_var && ( isset($post->post_status) && !$draft_or_pending ) ) 201 $post_link = add_query_arg($post_type->query_var, $slug, ''); 202 else 203 $post_link = add_query_arg(array('post_type' => $post->post_type, 'p' => $post->ID), ''); 204 $post_link = home_url($post_link); 205 } 206 207 return apply_filters('post_type_link', $post_link, $id, $leavename); 208 } 209 210 /** 211 * Retrieve permalink from post ID. 212 * 213 * @since 1.0.0 214 * 215 * @param int $post_id Optional. Post ID. 216 * @param mixed $deprecated Not used. 217 * @return string 218 */ 219 function post_permalink( $post_id = 0, $deprecated = '' ) { 220 if ( !empty( $deprecated ) ) 221 _deprecated_argument( __FUNCTION__, '1.3' ); 222 223 return get_permalink($post_id); 224 } 225 226 /** 227 * Retrieve the permalink for current page or page ID. 228 * 229 * Respects page_on_front. Use this one. 230 * 231 * @since 1.5.0 232 * 233 * @param int $id Optional. Post ID. 234 * @param bool $leavename Optional, defaults to false. Whether to keep page name. 235 * @param bool $sample Optional, defaults to false. Is it a sample permalink. 236 * @return string 237 */ 238 function get_page_link( $id = false, $leavename = false, $sample = false ) { 239 global $post; 240 241 $id = (int) $id; 242 if ( !$id ) 243 $id = (int) $post->ID; 244 245 if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') ) 246 $link = home_url('/'); 247 else 248 $link = _get_page_link( $id , $leavename, $sample ); 249 250 return apply_filters('page_link', $link, $id); 251 } 252 253 /** 254 * Retrieve the page permalink. 255 * 256 * Ignores page_on_front. Internal use only. 257 * 258 * @since 2.1.0 259 * @access private 260 * 261 * @param int $id Optional. Post ID. 262 * @param bool $leavename Optional. Leave name. 263 * @param bool $sample Optional. Sample permalink. 264 * @return string 265 */ 266 function _get_page_link( $id = false, $leavename = false, $sample = false ) { 267 global $post, $wp_rewrite; 268 269 if ( !$id ) 270 $id = (int) $post->ID; 271 else 272 $post = &get_post($id); 273 274 $pagestruct = $wp_rewrite->get_page_permastruct(); 275 276 if ( '' != $pagestruct && ( ( isset($post->post_status) && 'draft' != $post->post_status && 'pending' != $post->post_status ) || $sample ) ) { 277 $link = get_page_uri($id); 278 $link = ( $leavename ) ? $pagestruct : str_replace('%pagename%', $link, $pagestruct); 279 $link = home_url($link); 280 $link = user_trailingslashit($link, 'page'); 281 } else { 282 $link = home_url("?page_id=$id"); 283 } 284 285 return apply_filters( '_get_page_link', $link, $id ); 286 } 287 288 /** 289 * Retrieve permalink for attachment. 290 * 291 * This can be used in the WordPress Loop or outside of it. 292 * 293 * @since 2.0.0 294 * 295 * @param int $id Optional. Post ID. 296 * @return string 297 */ 298 function get_attachment_link($id = false) { 299 global $post, $wp_rewrite; 300 301 $link = false; 302 303 if ( ! $id) 304 $id = (int) $post->ID; 305 306 $object = get_post($id); 307 if ( $wp_rewrite->using_permalinks() && ($object->post_parent > 0) && ($object->post_parent != $id) ) { 308 $parent = get_post($object->post_parent); 309 if ( 'page' == $parent->post_type ) 310 $parentlink = _get_page_link( $object->post_parent ); // Ignores page_on_front 311 else 312 $parentlink = get_permalink( $object->post_parent ); 313 314 if ( is_numeric($object->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') ) 315 $name = 'attachment/' . $object->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker 316 else 317 $name = $object->post_name; 318 319 if ( strpos($parentlink, '?') === false ) 320 $link = user_trailingslashit( trailingslashit($parentlink) . $name ); 321 } 322 323 if ( ! $link ) 324 $link = trailingslashit(get_bloginfo('url')) . "?attachment_id=$id"; 325 326 return apply_filters('attachment_link', $link, $id); 327 } 328 329 /** 330 * Retrieve the permalink for the year archives. 331 * 332 * @since 1.5.0 333 * 334 * @param int|bool $year False for current year or year for permalink. 335 * @return string 336 */ 337 function get_year_link($year) { 338 global $wp_rewrite; 339 if ( !$year ) 340 $year = gmdate('Y', current_time('timestamp')); 341 $yearlink = $wp_rewrite->get_year_permastruct(); 342 if ( !empty($yearlink) ) { 343 $yearlink = str_replace('%year%', $year, $yearlink); 344 return apply_filters('year_link', home_url( user_trailingslashit($yearlink, 'year') ), $year); 345 } else { 346 return apply_filters('year_link', home_url('?m=' . $year), $year); 347 } 348 } 349 350 /** 351 * Retrieve the permalink for the month archives with year. 352 * 353 * @since 1.0.0 354 * 355 * @param bool|int $year False for current year. Integer of year. 356 * @param bool|int $month False for current month. Integer of month. 357 * @return string 358 */ 359 function get_month_link($year, $month) { 360 global $wp_rewrite; 361 if ( !$year ) 362 $year = gmdate('Y', current_time('timestamp')); 363 if ( !$month ) 364 $month = gmdate('m', current_time('timestamp')); 365 $monthlink = $wp_rewrite->get_month_permastruct(); 366 if ( !empty($monthlink) ) { 367 $monthlink = str_replace('%year%', $year, $monthlink); 368 $monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink); 369 return apply_filters('month_link', home_url( user_trailingslashit($monthlink, 'month') ), $year, $month); 370 } else { 371 return apply_filters('month_link', home_url( '?m=' . $year . zeroise($month, 2) ), $year, $month); 372 } 373 } 374 375 /** 376 * Retrieve the permalink for the day archives with year and month. 377 * 378 * @since 1.0.0 379 * 380 * @param bool|int $year False for current year. Integer of year. 381 * @param bool|int $month False for current month. Integer of month. 382 * @param bool|int $day False for current day. Integer of day. 383 * @return string 384 */ 385 function get_day_link($year, $month, $day) { 386 global $wp_rewrite; 387 if ( !$year ) 388 $year = gmdate('Y', current_time('timestamp')); 389 if ( !$month ) 390 $month = gmdate('m', current_time('timestamp')); 391 if ( !$day ) 392 $day = gmdate('j', current_time('timestamp')); 393 394 $daylink = $wp_rewrite->get_day_permastruct(); 395 if ( !empty($daylink) ) { 396 $daylink = str_replace('%year%', $year, $daylink); 397 $daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink); 398 $daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink); 399 return apply_filters('day_link', home_url( user_trailingslashit($daylink, 'day') ), $year, $month, $day); 400 } else { 401 return apply_filters('day_link', home_url( '?m=' . $year . zeroise($month, 2) . zeroise($day, 2) ), $year, $month, $day); 402 } 403 } 404 405 /** 406 * Display the permalink for the feed type. 407 * 408 * @since 3.0.0 409 * 410 * @param string $anchor The link's anchor text. 411 * @param string $feed Optional, defaults to default feed. Feed type. 412 */ 413 function the_feed_link( $anchor, $feed = '' ) { 414 $link = '<a href="' . esc_url( get_feed_link( $feed ) ) . '">' . $anchor . '</a>'; 415 echo apply_filters( 'the_feed_link', $link, $feed ); 416 } 417 418 /** 419 * Retrieve the permalink for the feed type. 420 * 421 * @since 1.5.0 422 * 423 * @param string $feed Optional, defaults to default feed. Feed type. 424 * @return string 425 */ 426 function get_feed_link($feed = '') { 427 global $wp_rewrite; 428 429 $permalink = $wp_rewrite->get_feed_permastruct(); 430 if ( '' != $permalink ) { 431 if ( false !== strpos($feed, 'comments_') ) { 432 $feed = str_replace('comments_', '', $feed); 433 $permalink = $wp_rewrite->get_comment_feed_permastruct(); 434 } 435 436 if ( get_default_feed() == $feed ) 437 $feed = ''; 438 439 $permalink = str_replace('%feed%', $feed, $permalink); 440 $permalink = preg_replace('#/+#', '/', "/$permalink"); 441 $output = home_url( user_trailingslashit($permalink, 'feed') ); 442 } else { 443 if ( empty($feed) ) 444 $feed = get_default_feed(); 445 446 if ( false !== strpos($feed, 'comments_') ) 447 $feed = str_replace('comments_', 'comments-', $feed); 448 449 $output = home_url("?feed={$feed}"); 450 } 451 452 return apply_filters('feed_link', $output, $feed); 453 } 454 455 /** 456 * Retrieve the permalink for the post comments feed. 457 * 458 * @since 2.2.0 459 * 460 * @param int $post_id Optional. Post ID. 461 * @param string $feed Optional. Feed type. 462 * @return string 463 */ 464 function get_post_comments_feed_link($post_id = '', $feed = '') { 465 global $id; 466 467 if ( empty($post_id) ) 468 $post_id = (int) $id; 469 470 if ( empty($feed) ) 471 $feed = get_default_feed(); 472 473 if ( '' != get_option('permalink_structure') ) { 474 $url = trailingslashit( get_permalink($post_id) ) . 'feed'; 475 if ( $feed != get_default_feed() ) 476 $url .= "/$feed"; 477 $url = user_trailingslashit($url, 'single_feed'); 478 } else { 479 $type = get_post_field('post_type', $post_id); 480 if ( 'page' == $type ) 481 $url = home_url("?feed=$feed&page_id=$post_id"); 482 else 483 $url = home_url("?feed=$feed&p=$post_id"); 484 } 485 486 return apply_filters('post_comments_feed_link', $url); 487 } 488 489 /** 490 * Display the comment feed link for a post. 491 * 492 * Prints out the comment feed link for a post. Link text is placed in the 493 * anchor. If no link text is specified, default text is used. If no post ID is 494 * specified, the current post is used. 495 * 496 * @package WordPress 497 * @subpackage Feed 498 * @since 2.5.0 499 * 500 * @param string $link_text Descriptive text. 501 * @param int $post_id Optional post ID. Default to current post. 502 * @param string $feed Optional. Feed format. 503 * @return string Link to the comment feed for the current post. 504 */ 505 function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) { 506 $url = get_post_comments_feed_link($post_id, $feed); 507 if ( empty($link_text) ) 508 $link_text = __('Comments Feed'); 509 510 echo apply_filters( 'post_comments_feed_link_html', "<a href='$url'>$link_text</a>", $post_id, $feed ); 511 } 512 513 /** 514 * Retrieve the feed link for a given author. 515 * 516 * Returns a link to the feed for all posts by a given author. A specific feed 517 * can be requested or left blank to get the default feed. 518 * 519 * @package WordPress 520 * @subpackage Feed 521 * @since 2.5.0 522 * 523 * @param int $author_id ID of an author. 524 * @param string $feed Optional. Feed type. 525 * @return string Link to the feed for the author specified by $author_id. 526 */ 527 function get_author_feed_link( $author_id, $feed = '' ) { 528 $author_id = (int) $author_id; 529 $permalink_structure = get_option('permalink_structure'); 530 531 if ( empty($feed) ) 532 $feed = get_default_feed(); 533 534 if ( '' == $permalink_structure ) { 535 $link = home_url("?feed=$feed&author=" . $author_id); 536 } else { 537 $link = get_author_posts_url($author_id); 538 if ( $feed == get_default_feed() ) 539 $feed_link = 'feed'; 540 else 541 $feed_link = "feed/$feed"; 542 543 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); 544 } 545 546 $link = apply_filters('author_feed_link', $link, $feed); 547 548 return $link; 549 } 550 551 /** 552 * Retrieve the feed link for a category. 553 * 554 * Returns a link to the feed for all post in a given category. A specific feed 555 * can be requested or left blank to get the default feed. 556 * 557 * @package WordPress 558 * @subpackage Feed 559 * @since 2.5.0 560 * 561 * @param int $cat_id ID of a category. 562 * @param string $feed Optional. Feed type. 563 * @return string Link to the feed for the category specified by $cat_id. 564 */ 565 function get_category_feed_link($cat_id, $feed = '') { 566 $cat_id = (int) $cat_id; 567 568 $category = get_category($cat_id); 569 570 if ( empty($category) || is_wp_error($category) ) 571 return false; 572 573 if ( empty($feed) ) 574 $feed = get_default_feed(); 575 576 $permalink_structure = get_option('permalink_structure'); 577 578 if ( '' == $permalink_structure ) { 579 $link = home_url("?feed=$feed&cat=" . $cat_id); 580 } else { 581 $link = get_category_link($cat_id); 582 if( $feed == get_default_feed() ) 583 $feed_link = 'feed'; 584 else 585 $feed_link = "feed/$feed"; 586 587 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); 588 } 589 590 $link = apply_filters('category_feed_link', $link, $feed); 591 592 return $link; 593 } 594 595 /** 596 * Retrieve permalink for feed of tag. 597 * 598 * @since 2.3.0 599 * 600 * @param int $tag_id Tag ID. 601 * @param string $feed Optional. Feed type. 602 * @return string 603 */ 604 function get_tag_feed_link($tag_id, $feed = '') { 605 $tag_id = (int) $tag_id; 606 607 $tag = get_tag($tag_id); 608 609 if ( empty($tag) || is_wp_error($tag) ) 610 return false; 611 612 $permalink_structure = get_option('permalink_structure'); 613 614 if ( empty($feed) ) 615 $feed = get_default_feed(); 616 617 if ( '' == $permalink_structure ) { 618 $link = home_url("?feed=$feed&tag=" . $tag->slug); 619 } else { 620 $link = get_tag_link($tag->term_id); 621 if ( $feed == get_default_feed() ) 622 $feed_link = 'feed'; 623 else 624 $feed_link = "feed/$feed"; 625 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); 626 } 627 628 $link = apply_filters('tag_feed_link', $link, $feed); 629 630 return $link; 631 } 632 633 /** 634 * Retrieve edit tag link. 635 * 636 * @since 2.7.0 637 * 638 * @param int $tag_id Tag ID 639 * @return string 640 */ 641 function get_edit_tag_link( $tag_id = 0, $taxonomy = 'post_tag' ) { 642 global $post_type; 643 $tax = get_taxonomy($taxonomy); 644 if ( !current_user_can($tax->edit_cap) ) 645 return; 646 647 $tag = get_term($tag_id, $taxonomy); 648 649 $location = admin_url('edit-tags.php?action=edit&taxonomy=' . $taxonomy . '&' . (!empty($post_type) ? 'post_type=' . $post_type .'&' : '') .'tag_ID=' . $tag->term_id); 650 return apply_filters( 'get_edit_tag_link', $location ); 651 } 652 653 /** 654 * Display or retrieve edit tag link with formatting. 655 * 656 * @since 2.7.0 657 * 658 * @param string $link Optional. Anchor text. 659 * @param string $before Optional. Display before edit link. 660 * @param string $after Optional. Display after edit link. 661 * @param int|object $tag Tag object or ID 662 * @return string|null HTML content, if $echo is set to false. 663 */ 664 function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) { 665 $tax = get_taxonomy('post_tag'); 666 if ( !current_user_can($tax->edit_cap) ) 667 return; 668 669 $tag = get_term($tag, 'post_tag'); 670 671 if ( empty($link) ) 672 $link = __('Edit This'); 673 674 $link = '<a href="' . get_edit_tag_link( $tag->term_id ) . '" title="' . __( 'Edit Tag' ) . '">' . $link . '</a>'; 675 echo $before . apply_filters( 'edit_tag_link', $link, $tag->term_id ) . $after; 676 } 677 678 /** 679 * Retrieve permalink for search. 680 * 681 * @since 3.0.0 682 * @param string $query Optional. The query string to use. If empty the current query is used. 683 * @return string 684 */ 685 function get_search_link( $query = '' ) { 686 global $wp_rewrite; 687 688 if ( empty($query) ) 689 $search = get_search_query(); 690 else 691 $search = stripslashes($query); 692 693 $permastruct = $wp_rewrite->get_search_permastruct(); 694 695 if ( empty( $permastruct ) ) { 696 $link = home_url('?s=' . urlencode($search) ); 697 } else { 698 $search = urlencode($search); 699 $search = str_replace('%2F', '/', $search); // %2F(/) is not valid within a URL, send it unencoded. 700 $link = str_replace( '%search%', $search, $permastruct ); 701 $link = home_url( user_trailingslashit( $link, 'search' ) ); 702 } 703 704 return apply_filters( 'search_link', $link, $search ); 705 } 706 707 /** 708 * Retrieve the permalink for the feed of the search results. 709 * 710 * @since 2.5.0 711 * 712 * @param string $search_query Optional. Search query. 713 * @param string $feed Optional. Feed type. 714 * @return string 715 */ 716 function get_search_feed_link($search_query = '', $feed = '') { 717 global $wp_rewrite; 718 $link = get_search_link($search_query); 719 720 if ( empty($feed) ) 721 $feed = get_default_feed(); 722 723 $permastruct = $wp_rewrite->get_search_permastruct(); 724 725 if ( empty($permastruct) ) { 726 $link = add_query_arg('feed', $feed, $link); 727 } else { 728 $link = trailingslashit($link); 729 $link .= "feed/$feed/"; 730 } 731 732 $link = apply_filters('search_feed_link', $link, $feed, 'posts'); 733 734 return $link; 735 } 736 737 /** 738 * Retrieve the permalink for the comments feed of the search results. 739 * 740 * @since 2.5.0 741 * 742 * @param string $search_query Optional. Search query. 743 * @param string $feed Optional. Feed type. 744 * @return string 745 */ 746 function get_search_comments_feed_link($search_query = '', $feed = '') { 747 global $wp_rewrite; 748 749 if ( empty($feed) ) 750 $feed = get_default_feed(); 751 752 $link = get_search_feed_link($search_query, $feed); 753 754 $permastruct = $wp_rewrite->get_search_permastruct(); 755 756 if ( empty($permastruct) ) 757 $link = add_query_arg('feed', 'comments-' . $feed, $link); 758 else 759 $link = add_query_arg('withcomments', 1, $link); 760 761 $link = apply_filters('search_feed_link', $link, $feed, 'comments'); 762 763 return $link; 764 } 765 766 /** 767 * Retrieve edit posts link for post. 768 * 769 * Can be used within the WordPress loop or outside of it. Can be used with 770 * pages, posts, attachments, and revisions. 771 * 772 * @since 2.3.0 773 * 774 * @param int $id Optional. Post ID. 775 * @param string $context Optional, default to display. How to write the '&', defaults to '&'. 776 * @return string 777 */ 778 function get_edit_post_link( $id = 0, $context = 'display' ) { 779 if ( !$post = &get_post( $id ) ) 780 return; 781 782 if ( 'display' == $context ) 783 $action = '&action=edit'; 784 else 785 $action = '&action=edit'; 786 787 $post_type_object = get_post_type_object( $post->post_type ); 788 if ( !$post_type_object ) 789 return; 790 791 if ( !current_user_can( $post_type_object->edit_cap, $post->ID ) ) 792 return; 793 794 return apply_filters( 'get_edit_post_link', admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), $post->ID, $context ); 795 } 796 797 /** 798 * Display edit post link for post. 799 * 800 * @since 1.0.0 801 * 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 $id Optional. Post ID. 806 */ 807 function edit_post_link( $link = null, $before = '', $after = '', $id = 0 ) { 808 if ( !$post = &get_post( $id ) ) 809 return; 810 811 if ( !$url = get_edit_post_link( $post->ID ) ) 812 return; 813 814 if ( null === $link ) 815 $link = __('Edit This'); 816 817 $link = '<a class="post-edit-link" href="' . $url . '" title="' . esc_attr( __( 'Edit Post' ) ) . '">' . $link . '</a>'; 818 echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after; 819 } 820 821 /** 822 * Retrieve delete posts link for post. 823 * 824 * Can be used within the WordPress loop or outside of it. Can be used with 825 * pages, posts, attachments, and revisions. 826 * 827 * @since 2.9.0 828 * 829 * @param int $id Optional. Post ID. 830 * @param string $context Optional, default to display. How to write the '&', defaults to '&'. 831 * @return string 832 */ 833 function get_delete_post_link($id = 0, $context = 'display') { 834 if ( !$post = &get_post( $id ) ) 835 return; 836 837 if ( 'display' == $context ) 838 $action = 'action=trash&'; 839 else 840 $action = 'action=trash&'; 841 842 if ( 'display' == $context ) 843 $action = '&action=trash'; 844 else 845 $action = '&action=trash'; 846 847 $post_type_object = get_post_type_object( $post->post_type ); 848 if ( !$post_type_object ) 849 return; 850 851 if ( !current_user_can( $post_type_object->delete_cap, $post->ID ) ) 852 return; 853 854 return apply_filters( 'get_delete_post_link', wp_nonce_url( admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), "trash-{$post->post_type}_" . $post->ID), $post->ID, $context ); 855 } 856 857 /** 858 * Retrieve edit comment link. 859 * 860 * @since 2.3.0 861 * 862 * @param int $comment_id Optional. Comment ID. 863 * @return string 864 */ 865 function get_edit_comment_link( $comment_id = 0 ) { 866 $comment = &get_comment( $comment_id ); 867 $post = &get_post( $comment->comment_post_ID ); 868 869 if ( $post->post_type == 'page' ) { 870 if ( !current_user_can( 'edit_page', $post->ID ) ) 871 return; 872 } else { 873 if ( !current_user_can( 'edit_post', $post->ID ) ) 874 return; 875 } 876 877 $location = admin_url('comment.php?action=editcomment&c=') . $comment->comment_ID; 878 return apply_filters( 'get_edit_comment_link', $location ); 879 } 880 881 /** 882 * Display or retrieve edit comment link with formatting. 883 * 884 * @since 1.0.0 885 * 886 * @param string $link Optional. Anchor text. 887 * @param string $before Optional. Display before edit link. 888 * @param string $after Optional. Display after edit link. 889 * @return string|null HTML content, if $echo is set to false. 890 */ 891 function edit_comment_link( $link = null, $before = '', $after = '' ) { 892 global $comment, $post; 893 894 if ( $post->post_type == 'page' ) { 895 if ( !current_user_can( 'edit_page', $post->ID ) ) 896 return; 897 } else { 898 if ( !current_user_can( 'edit_post', $post->ID ) ) 899 return; 900 } 901 902 if ( null === $link ) 903 $link = __('Edit This'); 904 905 $link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . __( 'Edit comment' ) . '">' . $link . '</a>'; 906 echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after; 907 } 908 909 /** 910 * Display edit bookmark (literally a URL external to blog) link. 911 * 912 * @since 2.7.0 913 * 914 * @param int $link Optional. Bookmark ID. 915 * @return string 916 */ 917 function get_edit_bookmark_link( $link = 0 ) { 918 $link = get_bookmark( $link ); 919 920 if ( !current_user_can('manage_links') ) 921 return; 922 923 $location = admin_url('link.php?action=edit&link_id=') . $link->link_id; 924 return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id ); 925 } 926 927 /** 928 * Display edit bookmark (literally a URL external to blog) link anchor content. 929 * 930 * @since 2.7.0 931 * 932 * @param string $link Optional. Anchor text. 933 * @param string $before Optional. Display before edit link. 934 * @param string $after Optional. Display after edit link. 935 * @param int $bookmark Optional. Bookmark ID. 936 */ 937 function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) { 938 $bookmark = get_bookmark($bookmark); 939 940 if ( !current_user_can('manage_links') ) 941 return; 942 943 if ( empty($link) ) 944 $link = __('Edit This'); 945 946 $link = '<a href="' . get_edit_bookmark_link( $link ) . '" title="' . __( 'Edit Link' ) . '">' . $link . '</a>'; 947 echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after; 948 } 949 950 // Navigation links 951 952 /** 953 * Retrieve previous post link that is adjacent to current post. 954 * 955 * @since 1.5.0 956 * 957 * @param bool $in_same_cat Optional. Whether link should be in same category. 958 * @param string $excluded_categories Optional. Excluded categories IDs. 959 * @return string 960 */ 961 function get_previous_post($in_same_cat = false, $excluded_categories = '') { 962 return get_adjacent_post($in_same_cat, $excluded_categories); 963 } 964 965 /** 966 * Retrieve next post link that is adjacent to current post. 967 * 968 * @since 1.5.0 969 * 970 * @param bool $in_same_cat Optional. Whether link should be in same category. 971 * @param string $excluded_categories Optional. Excluded categories IDs. 972 * @return string 973 */ 974 function get_next_post($in_same_cat = false, $excluded_categories = '') { 975 return get_adjacent_post($in_same_cat, $excluded_categories, false); 976 } 977 978 /** 979 * Retrieve adjacent post link. 980 * 981 * Can either be next or previous post link. 982 * 983 * @since 2.5.0 984 * 985 * @param bool $in_same_cat Optional. Whether link should be in same category. 986 * @param string $excluded_categories Optional. Excluded categories IDs. 987 * @param bool $previous Optional. Whether to retrieve previous post. 988 * @return string 989 */ 990 function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) { 991 global $post, $wpdb; 992 993 if ( empty( $post ) ) 994 return null; 995 996 $current_post_date = $post->post_date; 997 998 $join = ''; 999 $posts_in_ex_cats_sql = ''; 1000 if ( $in_same_cat || !empty($excluded_categories) ) { 1001 $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"; 1002 1003 if ( $in_same_cat ) { 1004 $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids')); 1005 $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")"; 1006 } 1007 1008 $posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'"; 1009 if ( !empty($excluded_categories) ) { 1010 $excluded_categories = array_map('intval', explode(' and ', $excluded_categories)); 1011 if ( !empty($cat_array) ) { 1012 $excluded_categories = array_diff($excluded_categories, $cat_array); 1013 $posts_in_ex_cats_sql = ''; 1014 } 1015 1016 if ( !empty($excluded_categories) ) { 1017 $posts_in_ex_cats_sql = " AND tt.taxonomy = 'category' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')'; 1018 } 1019 } 1020 } 1021 1022 $adjacent = $previous ? 'previous' : 'next'; 1023 $op = $previous ? '<' : '>'; 1024 $order = $previous ? 'DESC' : 'ASC'; 1025 1026 $join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_cat, $excluded_categories ); 1027 $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date, $post->post_type), $in_same_cat, $excluded_categories ); 1028 $sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" ); 1029 1030 $query = "SELECT p.* FROM $wpdb->posts AS p $join $where $sort"; 1031 $query_key = 'adjacent_post_' . md5($query); 1032 $result = wp_cache_get($query_key, 'counts'); 1033 if ( false !== $result ) 1034 return $result; 1035 1036 $result = $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort"); 1037 if ( null === $result ) 1038 $result = ''; 1039 1040 wp_cache_set($query_key, $result, 'counts'); 1041 return $result; 1042 } 1043 1044 /** 1045 * Get adjacent post relational link. 1046 * 1047 * Can either be next or previous post relational link. 1048 * 1049 * @since 2.8.0 1050 * 1051 * @param string $title Optional. Link title format. 1052 * @param bool $in_same_cat Optional. Whether link should be in same category. 1053 * @param string $excluded_categories Optional. Excluded categories IDs. 1054 * @param bool $previous Optional, default is true. Whether display link to previous post. 1055 * @return string 1056 */ 1057 function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $previous = true) { 1058 if ( $previous && is_attachment() && is_object( $GLOBALS['post'] ) ) 1059 $post = & get_post($GLOBALS['post']->post_parent); 1060 else 1061 $post = get_adjacent_post($in_same_cat,$excluded_categories,$previous); 1062 1063 if ( empty($post) ) 1064 return; 1065 1066 if ( empty($post->post_title) ) 1067 $post->post_title = $previous ? __('Previous Post') : __('Next Post'); 1068 1069 $date = mysql2date(get_option('date_format'), $post->post_date); 1070 1071 $title = str_replace('%title', $post->post_title, $title); 1072 $title = str_replace('%date', $date, $title); 1073 $title = apply_filters('the_title', $title, $post); 1074 1075 $link = $previous ? "<link rel='prev' title='" : "<link rel='next' title='"; 1076 $link .= esc_attr( $title ); 1077 $link .= "' href='" . get_permalink($post) . "' />\n"; 1078 1079 $adjacent = $previous ? 'previous' : 'next'; 1080 return apply_filters( "{$adjacent}_post_rel_link", $link ); 1081 } 1082 1083 /** 1084 * Display relational links for the posts adjacent to the current post. 1085 * 1086 * @since 2.8.0 1087 * 1088 * @param string $title Optional. Link title format. 1089 * @param bool $in_same_cat Optional. Whether link should be in same category. 1090 * @param string $excluded_categories Optional. Excluded categories IDs. 1091 */ 1092 function adjacent_posts_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { 1093 echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true); 1094 echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false); 1095 } 1096 1097 /** 1098 * Display relational link for the next post adjacent to the current post. 1099 * 1100 * @since 2.8.0 1101 * 1102 * @param string $title Optional. Link title format. 1103 * @param bool $in_same_cat Optional. Whether link should be in same category. 1104 * @param string $excluded_categories Optional. Excluded categories IDs. 1105 */ 1106 function next_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { 1107 echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false); 1108 } 1109 1110 /** 1111 * Display relational link for the previous post adjacent to the current post. 1112 * 1113 * @since 2.8.0 1114 * 1115 * @param string $title Optional. Link title format. 1116 * @param bool $in_same_cat Optional. Whether link should be in same category. 1117 * @param string $excluded_categories Optional. Excluded categories IDs. 1118 */ 1119 function prev_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { 1120 echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true); 1121 } 1122 1123 /** 1124 * Retrieve boundary post. 1125 * 1126 * Boundary being either the first or last post by publish date within the contraitns specified 1127 * by in same category or excluded categories. 1128 * 1129 * @since 2.8.0 1130 * 1131 * @param bool $in_same_cat Optional. Whether returned post should be in same category. 1132 * @param string $excluded_categories Optional. Excluded categories IDs. 1133 * @param bool $previous Optional. Whether to retrieve first post. 1134 * @return object 1135 */ 1136 function get_boundary_post($in_same_cat = false, $excluded_categories = '', $start = true) { 1137 global $post; 1138 1139 if ( empty($post) || !is_single() || is_attachment() ) 1140 return null; 1141 1142 $cat_array = array(); 1143 $excluded_categories = array(); 1144 if ( !empty($in_same_cat) || !empty($excluded_categories) ) { 1145 if ( !empty($in_same_cat) ) { 1146 $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids')); 1147 } 1148 1149 if ( !empty($excluded_categories) ) { 1150 $excluded_categories = array_map('intval', explode(',', $excluded_categories)); 1151 1152 if ( !empty($cat_array) ) 1153 $excluded_categories = array_diff($excluded_categories, $cat_array); 1154 1155 $inverse_cats = array(); 1156 foreach ( $excluded_categories as $excluded_category) 1157 $inverse_cats[] = $excluded_category * -1; 1158 $excluded_categories = $inverse_cats; 1159 } 1160 } 1161 1162 $categories = implode(',', array_merge($cat_array, $excluded_categories) ); 1163 1164 $order = $start ? 'ASC' : 'DESC'; 1165 1166 return get_posts( array('numberposts' => 1, 'no_found_rows' => true, 'order' => $order, 'orderby' => 'ID', 'category' => $categories) ); 1167 } 1168 1169 /** 1170 * Get boundary post relational link. 1171 * 1172 * Can either be start or end post relational link. 1173 * 1174 * @since 2.8.0 1175 * 1176 * @param string $title Optional. Link title format. 1177 * @param bool $in_same_cat Optional. Whether link should be in same category. 1178 * @param string $excluded_categories Optional. Excluded categories IDs. 1179 * @param bool $start Optional, default is true. Whether display link to first post. 1180 * @return string 1181 */ 1182 function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) { 1183 $posts = get_boundary_post($in_same_cat,$excluded_categories,$start); 1184 // If there is no post stop. 1185 if ( empty($posts) ) 1186 return; 1187 1188 // Even though we limited get_posts to return only 1 item it still returns an array of objects. 1189 $post = $posts[0]; 1190 1191 if ( empty($post->post_title) ) 1192 $post->post_title = $start ? __('First Post') : __('Last Post'); 1193 1194 $date = mysql2date(get_option('date_format'), $post->post_date); 1195 1196 $title = str_replace('%title', $post->post_title, $title); 1197 $title = str_replace('%date', $date, $title); 1198 $title = apply_filters('the_title', $title, $post); 1199 1200 $link = $start ? "<link rel='start' title='" : "<link rel='end' title='"; 1201 $link .= esc_attr($title); 1202 $link .= "' href='" . get_permalink($post) . "' />\n"; 1203 1204 $boundary = $start ? 'start' : 'end'; 1205 return apply_filters( "{$boundary}_post_rel_link", $link ); 1206 } 1207 1208 /** 1209 * Display relational link for the first post. 1210 * 1211 * @since 2.8.0 1212 * 1213 * @param string $title Optional. Link title format. 1214 * @param bool $in_same_cat Optional. Whether link should be in same category. 1215 * @param string $excluded_categories Optional. Excluded categories IDs. 1216 */ 1217 function start_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { 1218 echo get_boundary_post_rel_link($title, $in_same_cat, $excluded_categories, true); 1219 } 1220 1221 /** 1222 * Get site index relational link. 1223 * 1224 * @since 2.8.0 1225 * 1226 * @return string 1227 */ 1228 function get_index_rel_link() { 1229 $link = "<link rel='index' title='" . esc_attr( get_bloginfo( 'name', 'display' ) ) . "' href='" . esc_url( user_trailingslashit( get_bloginfo( 'url', 'display' ) ) ) . "' />\n"; 1230 return apply_filters( "index_rel_link", $link ); 1231 } 1232 1233 /** 1234 * Display relational link for the site index. 1235 * 1236 * @since 2.8.0 1237 */ 1238 function index_rel_link() { 1239 echo get_index_rel_link(); 1240 } 1241 1242 /** 1243 * Get parent post relational link. 1244 * 1245 * @since 2.8.0 1246 * 1247 * @param string $title Optional. Link title format. 1248 * @return string 1249 */ 1250 function get_parent_post_rel_link($title = '%title') { 1251 if ( ! empty( $GLOBALS['post'] ) && ! empty( $GLOBALS['post']->post_parent ) ) 1252 $post = & get_post($GLOBALS['post']->post_parent); 1253 1254 if ( empty($post) ) 1255 return; 1256 1257 $date = mysql2date(get_option('date_format'), $post->post_date); 1258 1259 $title = str_replace('%title', $post->post_title, $title); 1260 $title = str_replace('%date', $date, $title); 1261 $title = apply_filters('the_title', $title, $post); 1262 1263 $link = "<link rel='up' title='"; 1264 $link .= esc_attr( $title ); 1265 $link .= "' href='" . get_permalink($post) . "' />\n"; 1266 1267 return apply_filters( "parent_post_rel_link", $link ); 1268 } 1269 1270 /** 1271 * Display relational link for parent item 1272 * 1273 * @since 2.8.0 1274 */ 1275 function parent_post_rel_link($title = '%title') { 1276 echo get_parent_post_rel_link($title); 1277 } 1278 1279 /** 1280 * Display previous post link that is adjacent to the current post. 1281 * 1282 * @since 1.5.0 1283 * 1284 * @param string $format Optional. Link anchor format. 1285 * @param string $link Optional. Link permalink format. 1286 * @param bool $in_same_cat Optional. Whether link should be in same category. 1287 * @param string $excluded_categories Optional. Excluded categories IDs. 1288 */ 1289 function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') { 1290 adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true); 1291 } 1292 1293 /** 1294 * Display next post link that is adjacent to the current post. 1295 * 1296 * @since 1.5.0 1297 * 1298 * @param string $format Optional. Link anchor format. 1299 * @param string $link Optional. Link permalink format. 1300 * @param bool $in_same_cat Optional. Whether link should be in same category. 1301 * @param string $excluded_categories Optional. Excluded categories IDs. 1302 */ 1303 function next_post_link($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') { 1304 adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false); 1305 } 1306 1307 /** 1308 * Display adjacent post link. 1309 * 1310 * Can be either next post link or previous. 1311 * 1312 * @since 2.5.0 1313 * 1314 * @param string $format Link anchor format. 1315 * @param string $link Link permalink format. 1316 * @param bool $in_same_cat Optional. Whether link should be in same category. 1317 * @param string $excluded_categories Optional. Excluded categories IDs. 1318 * @param bool $previous Optional, default is true. Whether display link to previous post. 1319 */ 1320 function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) { 1321 if ( $previous && is_attachment() ) 1322 $post = & get_post($GLOBALS['post']->post_parent); 1323 else 1324 $post = get_adjacent_post($in_same_cat, $excluded_categories, $previous); 1325 1326 if ( !$post ) 1327 return; 1328 1329 $title = $post->post_title; 1330 1331 if ( empty($post->post_title) ) 1332 $title = $previous ? __('Previous Post') : __('Next Post'); 1333 1334 $title = apply_filters('the_title', $title, $post); 1335 $date = mysql2date(get_option('date_format'), $post->post_date); 1336 $rel = $previous ? 'prev' : 'next'; 1337 1338 $string = '<a href="'.get_permalink($post).'" rel="'.$rel.'">'; 1339 $link = str_replace('%title', $title, $link); 1340 $link = str_replace('%date', $date, $link); 1341 $link = $string . $link . '</a>'; 1342 1343 $format = str_replace('%link', $link, $format); 1344 1345 $adjacent = $previous ? 'previous' : 'next'; 1346 echo apply_filters( "{$adjacent}_post_link", $format, $link ); 1347 } 1348 1349 /** 1350 * Retrieve get links for page numbers. 1351 * 1352 * @since 1.5.0 1353 * 1354 * @param int $pagenum Optional. Page ID. 1355 * @return string 1356 */ 1357 function get_pagenum_link($pagenum = 1) { 1358 global $wp_rewrite; 1359 1360 $pagenum = (int) $pagenum; 1361 1362 $request = remove_query_arg( 'paged' ); 1363 1364 $home_root = parse_url(home_url()); 1365 $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : ''; 1366 $home_root = preg_quote( trailingslashit( $home_root ), '|' ); 1367 1368 $request = preg_replace('|^'. $home_root . '|', '', $request); 1369 $request = preg_replace('|^/+|', '', $request); 1370 1371 if ( !$wp_rewrite->using_permalinks() || is_admin() ) { 1372 $base = trailingslashit( get_bloginfo( 'url' ) ); 1373 1374 if ( $pagenum > 1 ) { 1375 $result = add_query_arg( 'paged', $pagenum, $base . $request ); 1376 } else { 1377 $result = $base . $request; 1378 } 1379 } else { 1380 $qs_regex = '|\?.*?$|'; 1381 preg_match( $qs_regex, $request, $qs_match ); 1382 1383 if ( !empty( $qs_match[0] ) ) { 1384 $query_string = $qs_match[0]; 1385 $request = preg_replace( $qs_regex, '', $request ); 1386 } else { 1387 $query_string = ''; 1388 } 1389 1390 $request = preg_replace( '|page/\d+/?$|', '', $request); 1391 $request = preg_replace( '|^index\.php|', '', $request); 1392 $request = ltrim($request, '/'); 1393 1394 $base = trailingslashit( get_bloginfo( 'url' ) ); 1395 1396 if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) ) 1397 $base .= 'index.php/'; 1398 1399 if ( $pagenum > 1 ) { 1400 $request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( 'page/' . $pagenum, 'paged' ); 1401 } 1402 1403 $result = $base . $request . $query_string; 1404 } 1405 1406 $result = apply_filters('get_pagenum_link', $result); 1407 1408 return $result; 1409 } 1410 1411 /** 1412 * Retrieve next posts pages link. 1413 * 1414 * Backported from 2.1.3 to 2.0.10. 1415 * 1416 * @since 2.0.10 1417 * 1418 * @param int $max_page Optional. Max pages. 1419 * @return string 1420 */ 1421 function get_next_posts_page_link($max_page = 0) { 1422 global $paged; 1423 1424 if ( !is_single() ) { 1425 if ( !$paged ) 1426 $paged = 1; 1427 $nextpage = intval($paged) + 1; 1428 if ( !$max_page || $max_page >= $nextpage ) 1429 return get_pagenum_link($nextpage); 1430 } 1431 } 1432 1433 /** 1434 * Display or return the next posts pages link. 1435 * 1436 * @since 0.71 1437 * 1438 * @param int $max_page Optional. Max pages. 1439 * @param boolean $echo Optional. Echo or return; 1440 */ 1441 function next_posts( $max_page = 0, $echo = true ) { 1442 $output = esc_url( get_next_posts_page_link( $max_page ) ); 1443 1444 if ( $echo ) 1445 echo $output; 1446 else 1447 return $output; 1448 } 1449 1450 /** 1451 * Return the next posts pages link. 1452 * 1453 * @since 2.7.0 1454 * 1455 * @param string $label Content for link text. 1456 * @param int $max_page Optional. Max pages. 1457 * @return string|null 1458 */ 1459 function get_next_posts_link( $label = 'Next Page »', $max_page = 0 ) { 1460 global $paged, $wp_query; 1461 1462 if ( !$max_page ) 1463 $max_page = $wp_query->max_num_pages; 1464 1465 if ( !$paged ) 1466 $paged = 1; 1467 1468 $nextpage = intval($paged) + 1; 1469 1470 if ( !is_single() && ( empty($paged) || $nextpage <= $max_page) ) { 1471 $attr = apply_filters( 'next_posts_link_attributes', '' ); 1472 return '<a href="' . next_posts( $max_page, false ) . "\" $attr>" . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) . '</a>'; 1473 } 1474 } 1475 1476 /** 1477 * Display the next posts pages link. 1478 * 1479 * @since 0.71 1480 * @uses get_next_posts_link() 1481 * 1482 * @param string $label Content for link text. 1483 * @param int $max_page Optional. Max pages. 1484 */ 1485 function next_posts_link( $label = 'Next Page »', $max_page = 0 ) { 1486 echo get_next_posts_link( $label, $max_page ); 1487 } 1488 1489 /** 1490 * Retrieve previous post pages link. 1491 * 1492 * Will only return string, if not on a single page or post. 1493 * 1494 * Backported to 2.0.10 from 2.1.3. 1495 * 1496 * @since 2.0.10 1497 * 1498 * @return string|null 1499 */ 1500 function get_previous_posts_page_link() { 1501 global $paged; 1502 1503 if ( !is_single() ) { 1504 $nextpage = intval($paged) - 1; 1505 if ( $nextpage < 1 ) 1506 $nextpage = 1; 1507 return get_pagenum_link($nextpage); 1508 } 1509 } 1510 1511 /** 1512 * Display or return the previous posts pages link. 1513 * 1514 * @since 0.71 1515 * 1516 * @param boolean $echo Optional. Echo or return; 1517 */ 1518 function previous_posts( $echo = true ) { 1519 $output = esc_url( get_previous_posts_page_link() ); 1520 1521 if ( $echo ) 1522 echo $output; 1523 else 1524 return $output; 1525 } 1526 1527 /** 1528 * Return the previous posts pages link. 1529 * 1530 * @since 2.7.0 1531 * 1532 * @param string $label Optional. Previous page link text. 1533 * @return string|null 1534 */ 1535 function get_previous_posts_link( $label = '« Previous Page' ) { 1536 global $paged; 1537 1538 if ( !is_single() && $paged > 1 ) { 1539 $attr = apply_filters( 'previous_posts_link_attributes', '' ); 1540 return '<a href="' . previous_posts( false ) . "\" $attr>". preg_replace( '/&([^#])(?![a-z]{1,8};)/', '&$1', $label ) .'</a>'; 1541 } 1542 } 1543 1544 /** 1545 * Display the previous posts page link. 1546 * 1547 * @since 0.71 1548 * @uses get_previous_posts_link() 1549 * 1550 * @param string $label Optional. Previous page link text. 1551 */ 1552 function previous_posts_link( $label = '« Previous Page' ) { 1553 echo get_previous_posts_link( $label ); 1554 } 1555 1556 /** 1557 * Return post pages link navigation for previous and next pages. 1558 * 1559 * @since 2.8 1560 * 1561 * @param string|array $args Optional args. 1562 * @return string The posts link navigation. 1563 */ 1564 function get_posts_nav_link( $args = array() ) { 1565 global $wp_query; 1566 1567 $return = ''; 1568 1569 if ( !is_singular() ) { 1570 $defaults = array( 1571 'sep' => ' — ', 1572 'prelabel' => __('« Previous Page'), 1573 'nxtlabel' => __('Next Page »'), 1574 ); 1575 $args = wp_parse_args( $args, $defaults ); 1576 1577 $max_num_pages = $wp_query->max_num_pages; 1578 $paged = get_query_var('paged'); 1579 1580 //only have sep if there's both prev and next results 1581 if ($paged < 2 || $paged >= $max_num_pages) { 1582 $args['sep'] = ''; 1583 } 1584 1585 if ( $max_num_pages > 1 ) { 1586 $return = get_previous_posts_link($args['prelabel']); 1587 $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $args['sep']); 1588 $return .= get_next_posts_link($args['nxtlabel']); 1589 } 1590 } 1591 return $return; 1592 1593 } 1594 1595 /** 1596 * Display post pages link navigation for previous and next pages. 1597 * 1598 * @since 0.71 1599 * 1600 * @param string $sep Optional. Separator for posts navigation links. 1601 * @param string $prelabel Optional. Label for previous pages. 1602 * @param string $nxtlabel Optional Label for next pages. 1603 */ 1604 function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) { 1605 $args = array_filter( compact('sep', 'prelabel', 'nxtlabel') ); 1606 echo get_posts_nav_link($args); 1607 } 1608 1609 /** 1610 * Retrieve page numbers links. 1611 * 1612 * @since 2.7.0 1613 * 1614 * @param int $pagenum Optional. Page number. 1615 * @return string 1616 */ 1617 function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) { 1618 global $post, $wp_rewrite; 1619 1620 $pagenum = (int) $pagenum; 1621 1622 $result = get_permalink( $post->ID ); 1623 1624 if ( 'newest' == get_option('default_comments_page') ) { 1625 if ( $pagenum != $max_page ) { 1626 if ( $wp_rewrite->using_permalinks() ) 1627 $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged'); 1628 else 1629 $result = add_query_arg( 'cpage', $pagenum, $result ); 1630 } 1631 } elseif ( $pagenum > 1 ) { 1632 if ( $wp_rewrite->using_permalinks() ) 1633 $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged'); 1634 else 1635 $result = add_query_arg( 'cpage', $pagenum, $result ); 1636 } 1637 1638 $result .= '#comments'; 1639 1640 $result = apply_filters('get_comments_pagenum_link', $result); 1641 1642 return $result; 1643 } 1644 1645 /** 1646 * Return the link to next comments pages. 1647 * 1648 * @since 2.7.1 1649 * 1650 * @param string $label Optional. Label for link text. 1651 * @param int $max_page Optional. Max page. 1652 * @return string|null 1653 */ 1654 function get_next_comments_link( $label = '', $max_page = 0 ) { 1655 global $wp_query; 1656 1657 if ( !is_singular() || !get_option('page_comments') ) 1658 return; 1659 1660 $page = get_query_var('cpage'); 1661 1662 $nextpage = intval($page) + 1; 1663 1664 if ( empty($max_page) ) 1665 $max_page = $wp_query->max_num_comment_pages; 1666 1667 if ( empty($max_page) ) 1668 $max_page = get_comment_pages_count(); 1669 1670 if ( $nextpage > $max_page ) 1671 return; 1672 1673 if ( empty($label) ) 1674 $label = __('Newer Comments »'); 1675 1676 return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .'</a>'; 1677 } 1678 1679 /** 1680 * Display the link to next comments pages. 1681 * 1682 * @since 2.7.0 1683 * 1684 * @param string $label Optional. Label for link text. 1685 * @param int $max_page Optional. Max page. 1686 */ 1687 function next_comments_link( $label = '', $max_page = 0 ) { 1688 echo get_next_comments_link( $label, $max_page ); 1689 } 1690 1691 /** 1692 * Return the previous comments page link. 1693 * 1694 * @since 2.7.1 1695 * 1696 * @param string $label Optional. Label for comments link text. 1697 * @return string|null 1698 */ 1699 function get_previous_comments_link( $label = '' ) { 1700 if ( !is_singular() || !get_option('page_comments') ) 1701 return; 1702 1703 $page = get_query_var('cpage'); 1704 1705 if ( intval($page) <= 1 ) 1706 return; 1707 1708 $prevpage = intval($page) - 1; 1709 1710 if ( empty($label) ) 1711 $label = __('« Older Comments'); 1712 1713 return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .'</a>'; 1714 } 1715 1716 /** 1717 * Display the previous comments page link. 1718 * 1719 * @since 2.7.0 1720 * 1721 * @param string $label Optional. Label for comments link text. 1722 */ 1723 function previous_comments_link( $label = '' ) { 1724 echo get_previous_comments_link( $label ); 1725 } 1726 1727 /** 1728 * Create pagination links for the comments on the current post. 1729 * 1730 * @see paginate_links() 1731 * @since 2.7.0 1732 * 1733 * @param string|array $args Optional args. See paginate_links. 1734 * @return string Markup for pagination links. 1735 */ 1736 function paginate_comments_links($args = array()) { 1737 global $wp_rewrite; 1738 1739 if ( !is_singular() || !get_option('page_comments') ) 1740 return; 1741 1742 $page = get_query_var('cpage'); 1743 if ( !$page ) 1744 $page = 1; 1745 $max_page = get_comment_pages_count(); 1746 $defaults = array( 1747 'base' => add_query_arg( 'cpage', '%#%' ), 1748 'format' => '', 1749 'total' => $max_page, 1750 'current' => $page, 1751 'echo' => true, 1752 'add_fragment' => '#comments' 1753 ); 1754 if ( $wp_rewrite->using_permalinks() ) 1755 $defaults['base'] = user_trailingslashit(trailingslashit(get_permalink()) . 'comment-page-%#%', 'commentpaged'); 1756 1757 $args = wp_parse_args( $args, $defaults ); 1758 $page_links = paginate_links( $args ); 1759 1760 if ( $args['echo'] ) 1761 echo $page_links; 1762 else 1763 return $page_links; 1764 } 1765 1766 /** 1767 * Retrieve shortcut link. 1768 * 1769 * Use this in 'a' element 'href' attribute. 1770 * 1771 * @since 2.6.0 1772 * 1773 * @return string 1774 */ 1775 function get_shortcut_link() { 1776 $link = "javascript: 1777 var d=document, 1778 w=window, 1779 e=w.getSelection, 1780 k=d.getSelection, 1781 x=d.selection, 1782 s=(e?e():(k)?k():(x?x.createRange().text:0)), 1783 f='" . admin_url('press-this.php') . "', 1784 l=d.location, 1785 e=encodeURIComponent, 1786 u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4'; 1787 a=function(){if(!w.open(u,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;}; 1788 if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a(); 1789 void(0)"; 1790 1791 $link = str_replace(array("\r", "\n", "\t"), '', $link); 1792 1793 return apply_filters('shortcut_link', $link); 1794 } 1795 1796 /** 1797 * Retrieve the home url for the current site. 1798 * 1799 * Returns the 'home' option with the appropriate protocol, 'https' if 1800 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is 1801 * overridden. 1802 * 1803 * @package WordPress 1804 * @since 3.0.0 1805 * 1806 * @uses get_home_url() 1807 * 1808 * @param string $path (optional) Path relative to the home url. 1809 * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https' 1810 * @return string Home url link with optional path appended. 1811 */ 1812 function home_url( $path = '', $scheme = null ) { 1813 return get_home_url(null, $path, $scheme); 1814 } 1815 1816 /** 1817 * Retrieve the home url for a given site. 1818 * 1819 * Returns the 'home' option with the appropriate protocol, 'https' if 1820 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is 1821 * overridden. 1822 * 1823 * @package WordPress 1824 * @since 3.0.0 1825 * 1826 * @param int $blog_id (optional) Blog ID. Defaults to current blog. 1827 * @param string $path (optional) Path relative to the home url. 1828 * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https' 1829 * @return string Home url link with optional path appended. 1830 */ 1831 function get_home_url( $blog_id = null, $path = '', $scheme = null ) { 1832 $orig_scheme = $scheme; 1833 1834 if ( !in_array($scheme, array('http', 'https')) ) 1835 $scheme = is_ssl() && !is_admin() ? 'https' : 'http'; 1836 1837 if ( empty($blog_id) || !is_multisite() ) 1838 $home = get_option('home'); 1839 else 1840 $home = untrailingslashit(get_blogaddress_by_id($blog_id)); 1841 1842 $url = str_replace( 'http://', "$scheme://", $home ); 1843 1844 if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) 1845 $url .= '/' . ltrim( $path, '/' ); 1846 1847 return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id ); 1848 } 1849 1850 /** 1851 * Retrieve the site url for the current site. 1852 * 1853 * Returns the 'site_url' option with the appropriate protocol, 'https' if 1854 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is 1855 * overridden. 1856 * 1857 * @package WordPress 1858 * @since 2.6.0 1859 * 1860 * @uses get_site_url() 1861 * 1862 * @param string $path Optional. Path relative to the site url. 1863 * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'. 1864 * @return string Site url link with optional path appended. 1865 */ 1866 function site_url( $path = '', $scheme = null ) { 1867 return get_site_url(null, $path, $scheme); 1868 } 1869 1870 /** 1871 * Retrieve the site url for a given site. 1872 * 1873 * Returns the 'site_url' option with the appropriate protocol, 'https' if 1874 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is 1875 * overridden. 1876 * 1877 * @package WordPress 1878 * @since 3.0.0 1879 * 1880 * @param int $blog_id (optional) Blog ID. Defaults to current blog. 1881 * @param string $path Optional. Path relative to the site url. 1882 * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'. 1883 * @return string Site url link with optional path appended. 1884 */ 1885 function get_site_url( $blog_id = null, $path = '', $scheme = null ) { 1886 // should the list of allowed schemes be maintained elsewhere? 1887 $orig_scheme = $scheme; 1888 if ( !in_array($scheme, array('http', 'https')) ) { 1889 if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) ) 1890 $scheme = 'https'; 1891 elseif ( ('login' == $scheme) && ( force_ssl_admin() ) ) 1892 $scheme = 'https'; 1893 elseif ( ('admin' == $scheme) && force_ssl_admin() ) 1894 $scheme = 'https'; 1895 else 1896 $scheme = ( is_ssl() ? 'https' : 'http' ); 1897 } 1898 1899 if ( empty($blog_id) || !is_multisite() ) 1900 $url = get_option('siteurl'); 1901 else 1902 $url = untrailingslashit(get_blogaddress_by_id($blog_id)); 1903 1904 $url = str_replace( 'http://', "{$scheme}://", $url ); 1905 1906 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 1907 $url .= '/' . ltrim($path, '/'); 1908 1909 return apply_filters('site_url', $url, $path, $orig_scheme, $blog_id); 1910 } 1911 1912 /** 1913 * Retrieve the url to the admin area for the current site. 1914 * 1915 * @package WordPress 1916 * @since 2.6.0 1917 * 1918 * @param string $path Optional path relative to the admin url 1919 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. 1920 * @return string Admin url link with optional path appended 1921 */ 1922 function admin_url( $path = '', $scheme = 'admin' ) { 1923 return get_admin_url(null, $path, $scheme); 1924 } 1925 1926 /** 1927 * Retrieve the url to the admin area for a given site. 1928 * 1929 * @package WordPress 1930 * @since 3.0.0 1931 * 1932 * @param int $blog_id (optional) Blog ID. Defaults to current blog. 1933 * @param string $path Optional path relative to the admin url 1934 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. 1935 * @return string Admin url link with optional path appended 1936 */ 1937 function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) { 1938 $url = get_site_url($blog_id, 'wp-admin/', $scheme); 1939 1940 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 1941 $url .= ltrim($path, '/'); 1942 1943 return apply_filters('admin_url', $url, $path, $blog_id); 1944 } 1945 1946 /** 1947 * Retrieve the url to the includes directory. 1948 * 1949 * @package WordPress 1950 * @since 2.6.0 1951 * 1952 * @param string $path Optional. Path relative to the includes url. 1953 * @return string Includes url link with optional path appended. 1954 */ 1955 function includes_url($path = '') { 1956 $url = site_url() . '/' . WPINC . '/'; 1957 1958 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 1959 $url .= ltrim($path, '/'); 1960 1961 return apply_filters('includes_url', $url, $path); 1962 } 1963 1964 /** 1965 * Retrieve the url to the content directory. 1966 * 1967 * @package WordPress 1968 * @since 2.6.0 1969 * 1970 * @param string $path Optional. Path relative to the content url. 1971 * @return string Content url link with optional path appended. 1972 */ 1973 function content_url($path = '') { 1974 $url = WP_CONTENT_URL; 1975 if ( 0 === strpos($url, 'http') && is_ssl() ) 1976 $url = str_replace( 'http://', 'https://', $url ); 1977 1978 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 1979 $url .= '/' . ltrim($path, '/'); 1980 1981 return apply_filters('content_url', $url, $path); 1982 } 1983 1984 /** 1985 * Retrieve the url to the plugins directory or to a specific file within that directory. 1986 * You can hardcode the plugin slug in $path or pass __FILE__ as a second argument to get the correct folder name. 1987 * 1988 * @package WordPress 1989 * @since 2.6.0 1990 * 1991 * @param string $path Optional. Path relative to the plugins url. 1992 * @param string $plugin Optional. The plugin file that you want to be relative to - i.e. pass in __FILE__ 1993 * @return string Plugins url link with optional path appended. 1994 */ 1995 function plugins_url($path = '', $plugin = '') { 1996 1997 $mu_plugin_dir = WPMU_PLUGIN_DIR; 1998 foreach ( array('path', 'plugin', 'mu_plugin_dir') as $var ) { 1999 $$var = str_replace('\\' ,'/', $$var); // sanitize for Win32 installs 2000 $$var = preg_replace('|/+|', '/', $$var); 2001 } 2002 2003 if ( !empty($plugin) && 0 === strpos($plugin, $mu_plugin_dir) ) 2004 $url = WPMU_PLUGIN_URL; 2005 else 2006 $url = WP_PLUGIN_URL; 2007 2008 if ( 0 === strpos($url, 'http') && is_ssl() ) 2009 $url = str_replace( 'http://', 'https://', $url ); 2010 2011 if ( !empty($plugin) && is_string($plugin) ) { 2012 $folder = dirname(plugin_basename($plugin)); 2013 if ( '.' != $folder ) 2014 $url .= '/' . ltrim($folder, '/'); 2015 } 2016 2017 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 2018 $url .= '/' . ltrim($path, '/'); 2019 2020 return apply_filters('plugins_url', $url, $path, $plugin); 2021 } 2022 2023 /** 2024 * Retrieve the site url for the current network. 2025 * 2026 * Returns the site url with the appropriate protocol, 'https' if 2027 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is 2028 * overridden. 2029 * 2030 * @package WordPress 2031 * @since 3.0.0 2032 * 2033 * @param string $path Optional. Path relative to the site url. 2034 * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'. 2035 * @return string Site url link with optional path appended. 2036 */ 2037 function network_site_url( $path = '', $scheme = null ) { 2038 global $current_site; 2039 2040 if ( !is_multisite() ) 2041 return site_url($path, $scheme); 2042 2043 $orig_scheme = $scheme; 2044 if ( !in_array($scheme, array('http', 'https')) ) { 2045 if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) ) 2046 $scheme = 'https'; 2047 elseif ( ('login' == $scheme) && ( force_ssl_admin() ) ) 2048 $scheme = 'https'; 2049 elseif ( ('admin' == $scheme) && force_ssl_admin() ) 2050 $scheme = 'https'; 2051 else 2052 $scheme = ( is_ssl() ? 'https' : 'http' ); 2053 } 2054 2055 $url = 'http://' . $current_site->domain . $current_site->path; 2056 2057 $url = str_replace( 'http://', "{$scheme}://", $url ); 2058 2059 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 2060 $url .= ltrim($path, '/'); 2061 2062 return apply_filters('network_site_url', $url, $path, $orig_scheme); 2063 } 2064 2065 /** 2066 * Retrieve the home url for the current network. 2067 * 2068 * Returns the home url with the appropriate protocol, 'https' if 2069 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is 2070 * overridden. 2071 * 2072 * @package WordPress 2073 * @since 3.0.0 2074 * 2075 * @param string $path (optional) Path relative to the home url. 2076 * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https' 2077 * @return string Home url link with optional path appended. 2078 */ 2079 function network_home_url( $path = '', $scheme = null ) { 2080 global $current_site; 2081 2082 if ( !is_multisite() ) 2083 return home_url($path, $scheme); 2084 2085 $orig_scheme = $scheme; 2086 2087 if ( !in_array($scheme, array('http', 'https')) ) 2088 $scheme = is_ssl() && !is_admin() ? 'https' : 'http'; 2089 2090 $url = 'http://' . $current_site->domain . $current_site->path; 2091 2092 $url = str_replace( 'http://', "$scheme://", $url ); 2093 2094 if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) 2095 $url .= ltrim( $path, '/' ); 2096 2097 return apply_filters( 'network_home_url', $url, $path, $orig_scheme); 2098 } 2099 2100 /** 2101 * Retrieve the url to the admin area for the network. 2102 * 2103 * @package WordPress 2104 * @since 3.0.0 2105 * 2106 * @param string $path Optional path relative to the admin url 2107 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. 2108 * @return string Admin url link with optional path appended 2109 */ 2110 function network_admin_url( $path = '', $scheme = 'admin' ) { 2111 $url = network_site_url('wp-admin/', $scheme); 2112 2113 if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) 2114 $url .= ltrim($path, '/'); 2115 2116 return apply_filters('network_admin_url', $url, $path); 2117 } 2118 2119 /** 2120 * Output rel=canonical for singular queries 2121 * 2122 * @package WordPress 2123 * @since 2.9.0 2124 */ 2125 function rel_canonical() { 2126 if ( !is_singular() ) 2127 return; 2128 2129 global $wp_the_query; 2130 if ( !$id = $wp_the_query->get_queried_object_id() ) 2131 return; 2132 2133 $link = get_permalink( $id ); 2134 echo "<link rel='canonical' href='$link' />\n"; 2135 } 2136 2137 /** 2138 * Return a shortlink for a post, page, attachment, or blog. 2139 * 2140 * This function exists to provide a shortlink tag that all themes and plugins can target. A plugin must hook in to 2141 * provide the actual shortlinks. Default shortlink support is limited to providing ?p= style links for posts. 2142 * Plugins can short circuit this function via the pre_get_shortlink filter or filter the output 2143 * via the get_shortlink filter. 2144 * 2145 * @since 3.0.0. 2146 * 2147 * @param int $id A post or blog id. Default is 0, which means the current post or blog. 2148 * @param string $contex Whether the id is a 'blog' id, 'post' id, or 'media' id. If 'post', the post_type of the post is consulted. If 'query', the current query is consulted to determine the id and context. Default is 'post'. 2149 * @param bool $allow_slugs Whether to allow post slugs in the shortlink. It is up to the plugin how and whether to honor this. 2150 * @return string A shortlink or an empty string if no shortlink exists for the requested resource or if shortlinks are not enabled. 2151 */ 2152 function wp_get_shortlink($id = 0, $context = 'post', $allow_slugs = true) { 2153 // Allow plugins to short-circuit this function. 2154 $shortlink = apply_filters('pre_get_shortlink', false, $id, $context, $allow_slugs); 2155 if ( false !== $shortlink ) 2156 return $shortlink; 2157 2158 global $wp_query; 2159 $post_id = 0; 2160 if ( 'query' == $context && is_single() ) 2161 $post_id = $wp_query->get_queried_object_id(); 2162 elseif ( 'post' == $context ) 2163 $post_id = $id; 2164 2165 $shortlink = ''; 2166 2167 // Return p= link for posts. 2168 if ( !empty($post_id) && '' != get_option('permalink_structure') ) { 2169 $post = get_post($post_id); 2170 if ( isset($post->post_type) && 'post' == $post->post_type ) 2171 $shortlink = home_url('?p=' . $post->ID); 2172 } 2173 2174 return apply_filters('get_shortlink', $shortlink, $id, $context, $allow_slugs); 2175 } 2176 2177 /** 2178 * Inject rel=sortlink into head if a shortlink is defined for the current page. 2179 * 2180 * Attached to the wp_head action. 2181 * 2182 * @since 3.0.0 2183 * 2184 * @uses wp_get_shortlink() 2185 */ 2186 function wp_shortlink_wp_head() { 2187 $shortlink = wp_get_shortlink(0, 'query'); 2188 2189 if ( empty($shortlink) ) 2190 return; 2191 2192 echo "<link rel='shortlink' href='" . $shortlink . "' />\n"; 2193 } 2194 2195 /** 2196 * Send a Link: rel=shortlink header if a shortlink is defined for the current page. 2197 * 2198 * Attached to the wp action. 2199 * 2200 * @since 3.0.0 2201 * 2202 * @uses wp_get_shortlink() 2203 */ 2204 function wp_shortlink_header() { 2205 if ( headers_sent() ) 2206 return; 2207 2208 $shortlink = wp_get_shortlink(0, 'query'); 2209 2210 if ( empty($shortlink) ) 2211 return; 2212 2213 header('Link: <' . $shortlink . '>; rel=shortlink', false); 2214 } 2215 2216 /** 2217 * Display the Short Link for a Post 2218 * 2219 * Must be called from inside "The Loop" 2220 * 2221 * Call like the_shortlink(__('Shortlinkage FTW')) 2222 * 2223 * @since 3.0.0 2224 * 2225 * @param string $text Optional The link text or HTML to be displayed. Defaults to 'This is the short link.' 2226 * @param string $title Optional The tooltip for the link. Must be sanitized. Defaults to the sanitized post title. 2227 * @param string $before Optional HTML to display before the link. 2228 * @param string $before Optional HTML to display after the link. 2229 */ 2230 function the_shortlink($text = '', $title = '', $before = '', $after = '') { 2231 global $post; 2232 2233 if ( empty($text) ) 2234 $text = __('This is the short link.'); 2235 2236 if ( empty($title) ) 2237 $title = the_title_attribute( array('echo' => FALSE) ); 2238 2239 $shortlink = wp_get_shortlink($post->ID); 2240 2241 if ( !empty($shortlink) ) 2242 echo "$before<a rel='shortlink' href='$shortlink' title='$title'>$text</a>$after"; 2243 } 2244 2245 ?>
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| Generated: Mon Apr 5 14:26:09 2010 | Cross-referenced by PHPXref 0.7 |
