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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 |
|---|---|
| 706 | |
| 707 | /** |
| 708 | * Filters the tag cloud output. |
| 709 | * |
| 710 | * @since 2.3.0 |
| 711 | * |
| 712 | * @param string $return HTML output of the tag cloud. |
| 713 | * @param array $args An array of tag cloud arguments. |
| 714 | */ |
| 715 | $return = apply_filters( 'wp_tag_cloud', $return, $args ); |
| 716 | |
| 717 | if ( 'array' == $args['format'] || empty($args['echo']) ) |
| 718 | return $return; |
| 719 | |
| 720 | echo $return; |
| 721 | } |
| 722 | |
| 723 | /** |
| 724 | * Default topic count scaling for tag links. |