<?php

class Foo {
 public $str1 = 'hello';
 protected $str2 = 'world';
 private $str3 = 'meh';

 public function __construct()
 {
  // just for fun
 }

 public function getWorld()
 {
  return $this->str2;
 }

 public function setState($value)
 {
  $this->str3 = $value;
 }

 public static function moo()
 {
  echo 'moo';
 }
}

$limit = 10000000;

$start = microtime(true);
for($i = 0; $i < $limit; $i++) {
 $reflected = new \ReflectionClass('Foo');
 unset($reflected);
}
$reflected1 = microtime(true) - $start;

$class = new Foo();
$start = microtime(true);
for($i = 0; $i < $limit; $i++) {
 $reflected  = new \ReflectionClass($class);
 unset($reflected);
}
$reflected2 = microtime(true) - $start;

$start = microtime(true);
for($i = 0; $i < $limit; $i++) {
 $arr = [1,2,3];
 unset($arr);
}
$array = microtime(true) - $start;

echo 'Reflection with string: ' . $reflected1 . PHP_EOL;
echo 'Reflection with object: ' . $reflected2 . PHP_EOL;
echo 'Array creation: ' . $array . PHP_EOL;