PHP 从Wordpress中的任何类别获取顶级类别

Posted 2021-05-14

if ( ! function_exists( 'get_top_level_category' )) {
	function get_top_level_category($id){
		$category = get_category($id);
		$parent_category = NULL;
		if($category->category_parent != 0){
			$parent_category = get_top_level_category($category->category_parent );
		} else {
			$parent_category = get_category($category->cat_ID);
		}
		return $parent_category;
	}
}