<?php
/***************
 *Author: 水木
 *Date: 2012-12-25
 *Description:
 *PHP函数应用编程练习
 *Blog: www.4u4v.net
 *Email: [email protected]
 **********************/
class obj implements Serializable {
    private $data;
    public function __construct() {
        $this->data = "My private data";
    }
    public function serialize() {
        return serialize($this->data);
    }
    public function unserialize($data) {
        $this->data = unserialize($data);
    }
    public function getData() {
        return $this->data;
    }
}

$obj = new obj;
$ser = serialize($obj);

$newobj = unserialize($ser);

var_dump($newobj->getData());
?>