3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = microtime(1); $i = 0; $cl = true; while (true) { if ( ++$i>10000 ) break; true === $cl || false === $cl; } var_dump(microtime(1) - $s);

preferences:
37.81 ms | 402 KiB | 5 Q