3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = microtime(true); fmod(34, 4294967296); $end = microtime(true); echo "fmod: ".$end-$start."<br>\n"; $start = microtime(true); bcmod('34', '4294967296'); $end = microtime(true); echo "bcmod: ".$end-$start."<br>\n";

preferences:
38.22 ms | 402 KiB | 5 Q