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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 |
|---|---|
| 629 | $cat_args['title_li'] = ''; |
| 630 | |
| 631 | /** |
| 632 | * Filter the arguments for the Categories widget. |
| 633 | * |
| 634 | * @since 2.8.0 |
| 635 | * |
| 636 | * @param array $cat_args An array of Categories widget options. |
| 637 | */ |
| 638 | wp_list_categories( apply_filters( 'widget_categories_args', $cat_args ) ); |
| 639 | ?> |
| 640 | </ul> |
| 641 | <?php |
| 642 | } |
| 643 | |
| 644 | echo $args['after_widget']; |
| 645 | } |
| 646 | |
| 647 | public function update( $new_instance, $old_instance ) { |