benchmark test

class.php

<?php

class A {
		public function getA() {
				return "A";
		}
}

function getA() {
		return "A";
}

$start_m = microtime();
$start = time();

$a = new A();
var_dump($a->getA());

$end_m = microtime();
$end = time();
$bench = ($end - $start) + ($end_m - $start_m);
var_dump($bench);

func.php

$ cat func.php
<?php

function getA() {
		return "A";
}

$start_m = microtime();
$start = time();

var_dump(getA());

$end_m = microtime();
$end = time();
$bench = ($end - $start) + ($end_m - $start_m);
var_dump($bench);