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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 |
|---|---|
| 659 | /** |
| 660 | * Filters the HTML output of a taxonomy list. |
| 661 | * |
| 662 | * @since 2.1.0 |
| 663 | * |
| 664 | * @param string $output HTML output. |
| 665 | * @param array|string $args An array or query string of taxonomy-listing arguments. See |
| 666 | * wp_list_categories() for information on accepted arguments. |
| 667 | */ |
| 668 | $html = apply_filters( 'wp_list_categories', $output, $args ); |
| 669 | |
| 670 | if ( $parsed_args['echo'] ) { |
| 671 | echo $html; |
| 672 | } else { |
| 673 | return $html; |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | /** |