Online PHP editor | refs for GR6On

<?php function measure($c) { $start = hrtime(true); $c(); var_dump(hrtime(true) - $start); } const ITERS = 10000; measure(function () { $array = []; for ($i = 0; $i < ITERS; $i++) { $array[] = $i; } }); measure(function () { $array = []; for ($i = 0; $i < ITERS; $i++) { $copy = $array; $array[] = $i; } });