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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
Line | Code |
---|---|
463 | function end_lvl(&$output, $depth, $args) { |
464 | $indent = str_repeat("\t", $depth); |
465 | $output .= "$indent</ul>\n"; |
466 | } |
467 |
|
468 | function start_el(&$output, $category, $depth, $args) { |
469 | extract($args); |
470 |
|
471 | $class = in_array( $category->term_id, $popular_cats ) ? ' class="popular-category"' : ''; |
472 | $output .= "\n<li id='category-$category->term_id'$class>" . '<label class="selectit"><input value="' . $category->term_id . '" type="checkbox" name="post_category[]" id="in-category-' . $category->term_id . '"' . (in_array( $category->term_id, $selected_cats ) ? ' checked="checked"' : "" ) . '/> ' . esc_html( apply_filters('the_category', $category->name )) . '</label>'; |
473 | } |
474 |
|
475 | function end_el(&$output, $category, $depth, $args) { |
476 | $output .= "</li>\n"; |
477 | } |
478 | } |
479 |
|
480 | /** |
481 | * {@internal Missing Short Description}} |
Line | Code |
561 | if ( !$echo ) // hack for AJAX use |
562 | continue; |
563 | $id = "popular-category-$category->term_id"; |
564 | $checked = in_array( $category->term_id, $checked_categories ) ? 'checked="checked"' : ''; |
565 | ?> |
566 |
|
567 | <li id="<?php echo $id; ?>" class="popular-category"> |
568 | <label class="selectit"> |
569 | <input id="in-<?php echo $id; ?>" type="checkbox" <?php echo $checked; ?> value="<?php echo (int) $category->term_id; ?>" /> |
570 | <?php echo esc_html( apply_filters( 'the_category', $category->name ) ); ?> |
571 | </label> |
572 | </li> |
573 |
|
574 | <?php |
575 | } |
576 | return $popular_ids; |
577 | } |
578 |
|
579 | /** |
Line | Code |
613 | } |
614 |
|
615 | $categories = get_terms('link_category', 'orderby=count&hide_empty=0'); |
616 |
|
617 | if ( empty($categories) ) |
618 | return; |
619 |
|
620 | foreach ( $categories as $category ) { |
621 | $cat_id = $category->term_id; |
622 | $name = esc_html( apply_filters('the_category', $category->name)); |
623 | $checked = in_array( $cat_id, $checked_categories ); |
624 | echo '<li id="link-category-', $cat_id, '"><label for="in-link-category-', $cat_id, '" class="selectit"><input value="', $cat_id, '" type="checkbox" name="link_category[]" id="in-link-category-', $cat_id, '"', ($checked ? ' checked="checked"' : "" ), '/> ', $name, "</label></li>"; |
625 | } |
626 | } |
627 |
|
628 | // Tag stuff |
629 |
|
630 | // Returns a single tag row (see tag_rows below) |
631 | // Note: this is also used in admin-ajax.php! |