PHP获取毫秒时间戳的方法有哪些

使用microtime函数：

$time = microtime(true) * 1000;echo $time;

$dateTime = new DateTime();$milliseconds = $dateTime->getTimestamp() * 1000 + round($dateTime->format('u') / 1000);echo $milliseconds;

$milliseconds = gmdate('U') * 1000 + round(gmdate('u') / 1000);echo $milliseconds;