3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo date("Y-m-d", strtotime("2022-01-11 --1 day"));
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
2022-01-10
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28
2022-01-12
preferences:
116.64 ms | 402 KiB | 89 Q