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