array_map.php

<?php
require 'Benchmark/Timer.php';
$timer = new Benchmark_Timer();

$a = array(1,2,3,4,5);
$max = 20;
function _map($i) { return $i . 'hoge';}

$timer->start();

for ($i = 0; $i < $max; $i++) {
	$c = array();
	foreach($a as $b) {
		$c[] = $b . 'hoge';
	}
}
$timer->setMarker('foreach');

for ($i = 0; $i < $max; $i++) {
	$c = array_map('_map', $a);
}
$timer->setMarker('array_map');

$timer->stop();
$timer->display();