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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 |
---|---|
626 |
|
627 | /** |
628 | * Filters the HTML output of a taxonomy list. |
629 | * |
630 | * @since 2.1.0 |
631 | * |
632 | * @param string $output HTML output. |
633 | * @param array $args An array of taxonomy-listing arguments. |
634 | */ |
635 | $html = apply_filters( 'wp_list_categories', $output, $args ); |
636 |
|
637 | if ( $r['echo'] ) { |
638 | echo $html; |
639 | } else { |
640 | return $html; |
641 | } |
642 | } |
643 |
|
644 | /** |