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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 |
---|---|
732 |
|
733 | /** |
734 | * Filters the tag cloud output. |
735 | * |
736 | * @since 2.3.0 |
737 | * |
738 | * @param string|array $return Tag cloud as a string or an array, depending on 'format' argument. |
739 | * @param array $args An array of tag cloud arguments. |
740 | */ |
741 | $return = apply_filters( 'wp_tag_cloud', $return, $args ); |
742 |
|
743 | if ( 'array' == $args['format'] || empty( $args['echo'] ) ) { |
744 | return $return; |
745 | } |
746 |
|
747 | echo $return; |
748 | } |
749 |
|
750 | /** |