? //生成記錄編號 14位年月日時分秒+3位毫秒數(shù)
? ? public function createOrderName($format = 'YmdHisu') {
? ? ? ? $utimestamp? = microtime(true);
? ? ? ? $timestamp? ? = floor($utimestamp);
? ? ? ? $milliseconds = round(($utimestamp - $timestamp) * 1000);
? ? ? ? return date(preg_replace('`(?<!\\\\)u`', $milliseconds, $format), $timestamp);
? ? }
