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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 |
---|---|
657 |
|
658 | /** |
659 | * Filters the HTML output of a taxonomy list. |
660 | * |
661 | * @since 2.1.0 |
662 | * |
663 | * @param string $output HTML output. |
664 | * @param array $args An array of taxonomy-listing arguments. |
665 | */ |
666 | $html = apply_filters( 'wp_list_categories', $output, $args ); |
667 |
|
668 | if ( $parsed_args['echo'] ) { |
669 | echo $html; |
670 | } else { |
671 | return $html; |
672 | } |
673 | } |
674 |
|
675 | /** |