3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo (new DateTime('@' . time()))->format(DATETIME::ATOM);
Output for 5.6.28, 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
2015-12-21T15:35:17+00:00
Output for 5.5.0 - 5.5.37, 5.6.0 - 5.6.23, 7.0.0 - 7.0.8
2015-12-21T15:35:16+00:00
preferences:
82.25 ms | 402 KiB | 85 Q