php原型模式实现的代码实例

<?php
// 原型模式

class Obj
{
	private $name = 'obj';
}

class Prototype
{
	private $type = 'prototype';
	private $obj = null;
	
	public function construct($type = null)
	{
		$this->type = $type;
		$this->obj = new Obj();
	}

	public function getType()
	{
		echoLine($this->type);
	}

	public function getObj()
	{
		return $this->obj;
	}
}

$p = new Prototype('prototype');
$c = clone $p; //浅克隆
var_dump($c === $p); //false
var_dump($p->getObj() === $c->getObj()); //true


// ==================================================


// 深克隆
function deepClone($obj)
{
	if(!is_object($obj))
		return null;

	return unserialize( serialize($obj) );
}

$dp = deepClone($p);
var_dump($dp === $p); //false
var_dump($p->getObj() === $dp->getObj()); //false

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