Online PHP editor | refs for GNSiO

<?php function lap($func) { $t0 = microtime(1); $numbers = range(0, 1000000); $ret = $func($numbers); $t1 = microtime(1); return array($t1 - $t0, $ret); } function useArray($numbers) { $result = array(); foreach ($numbers as $number) { $result[] = $number * 10; } return $result; } function useMapClosure($numbers) { return array_map(function($number) { return $number * 10; }, $numbers); } function _tenTimes($number) { return $number * 10; } function useMapNamed($numbers) { return array_map('_tenTimes', $numbers); } foreach (array('Array', 'MapClosure', 'MapNamed') as $callback) { list($delay,) = lap("use$callback"); echo "$callback: $delay\n"; }