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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 |
|---|---|
| 593 | $cat_args['title_li'] = ''; |
| 594 | |
| 595 | /** |
| 596 | * Filter the arguments for the Categories widget. |
| 597 | * |
| 598 | * @since 2.8.0 |
| 599 | * |
| 600 | * @param array $cat_args An array of Categories widget options. |
| 601 | */ |
| 602 | wp_list_categories( apply_filters( 'widget_categories_args', $cat_args ) ); |
| 603 | ?> |
| 604 | </ul> |
| 605 | <?php |
| 606 | } |
| 607 | |
| 608 | echo $args['after_widget']; |
| 609 | } |
| 610 | |
| 611 | public function update( $new_instance, $old_instance ) { |