class_implements() vs reflection

class_implements() vs reflection

<?php

class foo implements iteratorAggregate { function getIterator() {} }

$timeClassImplements = 0;

for ($i = 0; $i < 1000; $i++)
{
	$start = microtime(true);
	class_implements('foo');
	$timeClassImplements += (microtime(true) - $start);
}

var_dump($timeClassImplements);

$timeReflection = 0;

for ($i = 0; $i < 1000; $i++)
{
	$class = new reflectionClass('foo');
	$start = microtime(true);
	$class->getInterfaceNames();
	$timeReflection += (microtime(true) - $start);
}

var_dump($timeReflection);

var_dump($timeClassImplements - $timeReflection);

fch@Mageekbook:~
19> php -n test.php
float(0.00082540512084961)
float(0.00082063674926758)
float(4.7683715820312E-6)
fch@Mageekbook:~
20> php -v
PHP 5.4.13 (cli) (built: Apr 5 2013 08:55:20)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
with Xdebug v2.2.0, Copyright (c) 2002-2012, by Derick Rethans
fch@Mageekbook:~
21> php -m
[PHP Modules]
Core
ctype
date
dom
ereg
hash
json
libxml
mbstring
pcre
Phar
posix
readline
Reflection
session
SimpleXML
sockets
SPL
standard
tokenizer
xdebug
xhprof
xml

[Zend Modules]
Xdebug