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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 |
|---|---|
| 708 | |
| 709 | /** |
| 710 | * Filter how the items in a tag cloud are sorted. |
| 711 | * |
| 712 | * @since 2.8.0 |
| 713 | * |
| 714 | * @param array $tags Ordered array of terms. |
| 715 | * @param array $args An array of tag cloud arguments. |
| 716 | */ |
| 717 | $tags_sorted = apply_filters( 'tag_cloud_sort', $tags, $args ); |
| 718 | if ( empty( $tags_sorted ) ) { |
| 719 | return $return; |
| 720 | } |
| 721 | |
| 722 | if ( $tags_sorted !== $tags ) { |
| 723 | $tags = $tags_sorted; |
| 724 | unset( $tags_sorted ); |
| 725 | } else { |
| 726 | if ( 'RAND' === $order ) { |