PHP 二维关联数组根据其中一个字段排序

function wpjam_array_multisort($array, $orderby, $order = SORT_ASC, $sort_flags = SORT_NUMERIC){
	$refer = array();

	foreach ($array as $key => $value) {
		$refer[$key] = $value[$orderby];
	}

	array_multisort($refer, $order, $sort_flags, $array);

	return $array;
}