3v4l.org

run code in 300+ PHP versions simultaneously
<?php while (true) { $rand1 = rand(); $rand2 = rand(); if (bcmod($rand1, $rand2) != fmod($rand1, $rand2)) { echo $rand1." ".$rand2; break; } }
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.17, 7.0.31, 7.1.19 - 7.1.21, 7.2.7 - 7.2.9

Process exited with code 137.
preferences:
73.18 ms | 402 KiB | 58 Q