WordPress函数：post_type_archive_title

一、函数简介

post_type_archive_title该函数的作用是显示或检索帖子类型存档的标题。（Displays or retrieves title for a post type archive.）

 

二、函数参数

* @param string $prefix Optional. What to display before the title.

* @param bool $display Optional. Whether to display or retrieve title. Default true.

* @return string|void Title when retrieving, null when displaying or failure.

 

三、函数案例

（一）、案例1

 

 

四、源代码

/**
 * Displays or retrieves title for a post type archive.
 *
 * This is optimized for archive.php and archive-{$post_type}.php template files
 * for displaying the title of the post type.
 *
 * @since 3.1.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional. Whether to display or retrieve title. Default true.
 * @return string|void Title when retrieving, null when displaying or failure.
 */
function post_type_archive_title( $prefix = '', $display = true ) {
	if ( ! is_post_type_archive() ) {
		return;
	}

	$post_type = get_query_var( 'post_type' );
	if ( is_array( $post_type ) ) {
		$post_type = reset( $post_type );
	}

	$post_type_obj = get_post_type_object( $post_type );

	/**
	 * Filters the post type archive title.
	 *
	 * @since 3.1.0
	 *
	 * @param string $post_type_name Post type 'name' label.
	 * @param string $post_type      Post type.
	 */
	$title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type );

	if ( $display ) {
		echo $prefix . $title;
	} else {
		return $prefix . $title;
	}
}