Online PHP editor | refs for W6Yp8

<?php function delta() { static $lastmem; $delta = memory_get_peak_usage() - $lastmem; if ($lastmem == 0) $delta = 0; $lastmem = memory_get_peak_usage(); return $delta; } $a=range(1, 500); for($x=0;$x<sizeof($a);$x++) { $a[$x]++; } var_dump('for loop and increment delta:'.delta()); foreach($a as $k=>$v) { $a[$k]++; } var_dump('foreach loop and increment delta: '.delta());