Online PHP editor | refs for 2vZTt

<?php function check_ints(&$in) { if (is_array($in)) { foreach ($in as $val) { recurse_array($val); } } } $array = range(1, 10); $array[10] = $array; $array[10][10] = $array; $array[10][10][10] = $array; $array[10][10][10][10] = $array; $array[10][10][10][10][10] = $array; echo 'memory before: ', memory_get_peak_usage(true); recurse_array($array); echo 'memory after: ', memory_get_peak_usage(true);