<?php
/**
 * 原型模式 2010-06-27 sz
 * @author phppan.p#gmail.com  http://www.phppan.com
 * 哥学社成员（http://www.blog-brother.com/）
 * @package design pattern
 */
 
/**
 * 抽象原型角色
 */
interface Prototype {
    public function copy();
}
 
/**
 * 具体原型角色
 */
class ConcretePrototype implements Prototype{
 
    private  $_name;
 
    public function __construct($name) {
        $this->_name = $name;
    }
 
    public function setName($name) {
        $this->_name = $name;
    }
 
    public function getName() {
        return $this->_name;
    }
 
    public function copy() {
       /* 深拷贝实现
        $serialize_obj = serialize($this);  //  序列化
        $clone_obj = unserialize($serialize_obj);   //  反序列化                                                     
        return $clone_obj;
        */
        return clone $this;     //  浅拷贝
    }
}
 
/**
 * 测试深拷贝用的引用类
 */
class Demo {
    public $array;
}
 
class Client {
 
     /**
     * Main program.
     */
    public static function main() {
 
        $demo = new Demo();
        $demo->array = array(1, 2);
        $object1 = new ConcretePrototype($demo);
        $object2 = $object1->copy();
 
        var_dump($object1->getName());
        echo '<br />';
        var_dump($object2->getName());
        echo '<br />';
 
        $demo->array = array(3, 4);
        var_dump($object1->getName());
        echo '<br />';
        var_dump($object2->getName());
        echo '<br />';
 
    }
 
}
 
Client::main();
?>