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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 |
|---|---|
| 756 | /** |
| 757 | * Filters the tag cloud output. |
| 758 | * |
| 759 | * @since 2.3.0 |
| 760 | * |
| 761 | * @param string|string[] $return Tag cloud as a string or an array, depending on 'format' argument. |
| 762 | * @param array $args An array of tag cloud arguments. See wp_tag_cloud() |
| 763 | * for information on accepted arguments. |
| 764 | */ |
| 765 | $return = apply_filters( 'wp_tag_cloud', $return, $args ); |
| 766 | |
| 767 | if ( 'array' === $args['format'] || empty( $args['echo'] ) ) { |
| 768 | return $return; |
| 769 | } |
| 770 | |
| 771 | echo $return; |
| 772 | } |
| 773 | |
| 774 | /** |