3v4l.org

run code in 300+ PHP versions simultaneously
<?php mt_srand(0); echo '0: ' . mt_rand() / mt_getrandmax() . PHP_EOL; mt_srand(4); echo '4: ' . mt_rand() / mt_getrandmax() . PHP_EOL;
preferences:
20.52 ms | 402 KiB | 5 Q