<?php


echo (1=='rrrttt')."<br>";

echo __FILE__.'   -   '.dirname(__FILE__).'<br>';

// Nested unserialize order
class a{
	public $x;
	public function __wakeup(){
		echo 'a<br>';
	}
}

class b{
	public $x;
	public function __wakeup(){
		echo 'b<br>';
	}
}


class c{
	public $x;
	public function __wakeup(){
		echo 'c<br>';
	}
}


class d{
	public $x;
	public function __wakeup(){
		echo 'd<br>';
	}
}

$alpha = new a();
$alpha->x = new b();
$alpha->x->x = new c();
$alpha->x->x->x = new d();
$z = serialize($alpha);
$b = unserialize($z);

$z = array();
echo (!$z['ss']);
echo '+'.empty($z['22']);
if($z['ssss']) echo 2;
echo $z['ssss'];