3v4l.org

run code in 300+ PHP versions simultaneously
<?php srand(5566); echo rand()."\n"; mt_srand(5566); echo mt_rand()."\n";
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.28, 8.1.0 - 8.1.19, 8.2.0 - 8.2.6
1869294964 1869294964
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
471903425 270587906
preferences:
173.7 ms | 402 KiB | 270 Q