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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 |
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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 ) { |