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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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620 | $args['topic_count_text_callback'] = create_function('$count', $body); |
621 | } |
622 |
|
623 | $args = wp_parse_args( $args, $defaults ); |
624 | extract( $args ); |
625 |
|
626 | if ( empty( $tags ) ) |
627 | return; |
628 |
|
629 | $tags_sorted = apply_filters( 'tag_cloud_sort', $tags, $args ); |
630 | if ( $tags_sorted != $tags ) { // the tags have been sorted by a plugin |
631 | $tags = $tags_sorted; |
632 | unset($tags_sorted); |
633 | } else { |
634 | if ( 'RAND' == $order ) { |
635 | shuffle($tags); |
636 | } else { |
637 | // SQL cannot save you; this is a second (potentially different) sort on a subset of data. |
638 | if ( 'name' == $orderby ) |