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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 |
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753 |
|
754 | /** |
755 | * Filters the tag cloud output. |
756 | * |
757 | * @since 2.3.0 |
758 | * |
759 | * @param string|array $return Tag cloud as a string or an array, depending on 'format' argument. |
760 | * @param array $args An array of tag cloud arguments. |
761 | */ |
762 | $return = apply_filters( 'wp_tag_cloud', $return, $args ); |
763 |
|
764 | if ( 'array' === $args['format'] || empty( $args['echo'] ) ) { |
765 | return $return; |
766 | } |
767 |
|
768 | echo $return; |
769 | } |
770 |
|
771 | /** |