3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo (new DateTime('2015-10-18'))->modify('-7 days')->setTime(0, 0, 0)->format('Y-m-d H:i:s');
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2015-10-11 00:00:00
preferences:
220.71 ms | 404 KiB | 242 Q