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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 2 times in this file.
| Line | Code |
|---|---|
| 116 | |
| 117 | $result = apply_filters('get_nested_categories', $result); |
| 118 | usort( $result, 'sort_cats' ); |
| 119 | |
| 120 | return $result; |
| 121 | } |
| 122 | |
| 123 | function write_nested_categories( $categories ) { |
| 124 | foreach ( $categories as $category ) { |
| 125 | echo '<li id="category-', $category['cat_ID'], '"><label for="in-category-', $category['cat_ID'], '" class="selectit"><input value="', $category['cat_ID'], '" type="checkbox" name="post_category[]" id="in-category-', $category['cat_ID'], '"', ($category['checked'] ? ' checked="checked"' : "" ), '/> ', wp_specialchars( apply_filters('the_category', $category['cat_name'] )), "</label></li>"; |
| 126 | |
| 127 | if ( $category['children'] ) { |
| 128 | echo "<ul>\n"; |
| 129 | write_nested_categories( $category['children'] ); |
| 130 | echo "</ul>\n"; |
| 131 | } |
| 132 | } |
| 133 | } |
| 134 | |
| Line | Code |
| 151 | } |
| 152 | |
| 153 | $categories = get_terms('link_category', 'orderby=count&hide_empty=0'); |
| 154 | |
| 155 | if ( empty($categories) ) |
| 156 | return; |
| 157 | |
| 158 | foreach ( $categories as $category ) { |
| 159 | $cat_id = $category->term_id; |
| 160 | $name = wp_specialchars( apply_filters('the_category', $category->name)); |
| 161 | $checked = in_array( $cat_id, $checked_categories ); |
| 162 | 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>"; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | function page_rows( $parent = 0, $level = 0, $pages = 0, $hierarchy = true ) { |
| 167 | global $wpdb, $class, $post; |
| 168 | |
| 169 | if (!$pages ) |