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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 |
---|---|
928 |
|
929 | /** |
930 | * Filter the page title for a single post. |
931 | * |
932 | * @since 0.71 |
933 | * |
934 | * @param string $_post_title The single post page title. |
935 | * @param object $_post The current queried object as returned by get_queried_object(). |
936 | */ |
937 | $title = apply_filters( 'single_post_title', $_post->post_title, $_post ); |
938 | if ( $display ) |
939 | echo $prefix . $title; |
940 | else |
941 | return $prefix . $title; |
942 | } |
943 |
|
944 | /** |
945 | * Display or retrieve title for a post type archive. |
946 | * |