PHP WordPress：在次要的？

Posted 2021-05-15

function in_subcategory( $cat_id ) {
	$subcats = get_term_children( $cat_id, 'category' );
	if ( $subcats && !is_wp_error( $subcats ) ) {
		foreach( $subcats as $child_category ) {
			if( in_category($child_category) ) {
				return true;
			}
		}
	}
	return false;
}