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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 |
---|---|
656 |
|
657 | /** |
658 | * Filters the HTML output of a taxonomy list. |
659 | * |
660 | * @since 2.1.0 |
661 | * |
662 | * @param string $output HTML output. |
663 | * @param array $args An array of taxonomy-listing arguments. |
664 | */ |
665 | $html = apply_filters( 'wp_list_categories', $output, $args ); |
666 |
|
667 | if ( $parsed_args['echo'] ) { |
668 | echo $html; |
669 | } else { |
670 | return $html; |
671 | } |
672 | } |
673 |
|
674 | /** |