3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo date('Y-m-d H:i:s', strtotime('2017-01-00 00:00:00'));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
2016-12-31 00:00:00

preferences:
191.57 ms | 403 KiB | 199 Q