3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = trim(fgets(STDIN)); $func = function($x, $y) { $j = $x + $y; }; for ($i = 0; $i < 10000; $i++) { $func($i, 100); }

preferences:
36.46 ms | 402 KiB | 5 Q