wzorzec Rejestr Opcje

[smiady]

Poznałem właśnie wzorzec rejestr i mam taki problem:

register.php

[PHP] pobierz, plaintext 
	class RegisterException extends Exception {}
 
	class Register {
		private $store= array();
 
		public function set($object, $name= NULL) {
			$name= (!is_null($name)) ? $name : get_class($object);
			$name= strtolower($name);
 
			if($this->contains($name))
				return $this->store[$name];
 
			$this->store[$name]= $object;	
 
			return true;
		}
 
		public function get($name) {
			if(!$this->contains($name))
				throw new RegisterException('Podany obiekt nie istnieje !');
 
			return $this->store[$name];
		}
 
		public function remove($name) {
			if(!$this->contains($name))
				throw new RegisterException('Podany obiekt nie istnieje !');
 
			unset($this->store[$name]);
 
			return true;
		}
 
		public function contains($name) {
			if(isset($this->store[$name]))
				return true;
 
			return false;
		}
	}
 
	class Klasa {
		private $liczba1;
 
		public function __construct($integer) {
			$this->liczba1= $integer;
		}
 
		public function setLiczba($integer) {
			$this->liczba1= $integer;
		}
 
		public function getLiczba() {
			return $this->liczba1;
		}
	}
[PHP] pobierz, plaintext 

register_start.php

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	session_start();
 
	require 'register.php';
 
	$klasa1= new Klasa(15);
 
	$klasa2= clone $klasa1;
	$klasa2->setLiczba(30);
 
	$klasa3= clone $klasa1;
	$klasa3->setLiczba(50);
 
	$register= new Register();
	$register->set($klasa1, 'klasa1');
	$register->set($klasa2, 'klasa2');
	$register->set($klasa3, 'klasa3');
 
	$_SESSION['register']= $register;
 
	echo '<a href="register2.php" title="przejdź do odczytu rejestru">odczyt rejestru</a>';
[PHP] pobierz, plaintext 

register2.php

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	session_start();
 
	require 'register.php';
 
	$register= isset($_SESSION['register']) ? $_SESSION['register'] : null;
 
	try {
		$klasa1= $register->get('klasa1');
		$klasa2= $register->get('klasa2');
		$klasa3= $register->get('klasa3');
	} catch(RegisterException $e) {
		echo $e->getMessage();
	}
 
	echo $klasa1->getLiczba() . '<br/>';
	echo $klasa2->getLiczba() . '<br/>';
	echo $klasa3->getLiczba() . '<br/>';
[PHP] pobierz, plaintext 

Najpierw startuje od register_start.php, potem klikam na linka i mam taki błąd:
Fatal error: main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;Register&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in C:\xampp\xampp\htdocs\php\register2.php on line 9