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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 |
---|---|
951 |
|
952 | /** |
953 | * Filter the post type archive title. |
954 | * |
955 | * @since 3.1.0 |
956 | * |
957 | * @param string $post_type_name Post type 'name' label. |
958 | * @param string $post_type Post type. |
959 | */ |
960 | $title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type ); |
961 |
|
962 | if ( $display ) |
963 | echo $prefix . $title; |
964 | else |
965 | return $prefix . $title; |
966 | } |
967 |
|
968 | /** |
969 | * Display or retrieve page title for category archive. |