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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 |
---|---|
726 |
|
727 | /** |
728 | * Filters the tag cloud output. |
729 | * |
730 | * @since 2.3.0 |
731 | * |
732 | * @param string $return HTML output of the tag cloud. |
733 | * @param array $args An array of tag cloud arguments. |
734 | */ |
735 | $return = apply_filters( 'wp_tag_cloud', $return, $args ); |
736 |
|
737 | if ( 'array' == $args['format'] || empty( $args['echo'] ) ) { |
738 | return $return; |
739 | } |
740 |
|
741 | echo $return; |
742 | } |
743 |
|
744 | /** |