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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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649 | * @param string $prefix Optional. What to display before the title. |
650 | * @param bool $display Optional, default is true. Whether to display or retrieve title. |
651 | * @return string|null Title when retrieving, null when displaying or failure. |
652 | */ |
653 | function post_type_archive_title( $prefix = '', $display = true ) { |
654 | if ( ! is_post_type_archive() ) |
655 | return; |
656 |
|
657 | $post_type_obj = get_queried_object(); |
658 | $title = apply_filters('post_type_archive_title', $post_type_obj->labels->name ); |
659 |
|
660 | if ( $display ) |
661 | echo $prefix . $title; |
662 | else |
663 | return $title; |
664 | } |
665 |
|
666 | /** |
667 | * Display or retrieve page title for category archive. |