3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = INF; $n = pow(2,64); echo $a/$n,"\n"; echo $a - ($n * (int) ($a/$n) ),"\n"; echo fmod(INF,pow(2,64)),"\n"; echo INF % pow(2,64);

preferences:
62.62 ms | 402 KiB | 5 Q