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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.
| Line | Code |
|---|---|
| 1031 | |
| 1032 | $cats = get_categories(array('type' => 'link', 'orderby' => $order, 'order' => $direction, 'hierarchical' => 0)); |
| 1033 | |
| 1034 | // Display each category |
| 1035 | if ( $cats ) { |
| 1036 | foreach ( (array) $cats as $cat ) { |
| 1037 | // Handle each category. |
| 1038 | |
| 1039 | // Display the category name |
| 1040 | echo ' <li id="linkcat-' . $cat->term_id . '" class="linkcat"><h2>' . apply_filters('link_category', $cat->name ) . "</h2>\n\t<ul>\n"; |
| 1041 | // Call get_links() with all the appropriate params |
| 1042 | get_links($cat->term_id, '<li>', "</li>", "\n", true, 'name', false); |
| 1043 | |
| 1044 | // Close the last category |
| 1045 | echo "\n\t</ul>\n</li>\n"; |
| 1046 | } |
| 1047 | } |
| 1048 | } |
| 1049 | |