<?php

interface IPrototype{

public function copy();

}

class Employee implements IPrototype{

private $name;

private $salary;

public function __construct($name,$salary){

$this->name=$name;

$this->salary=$salary;

}

public function getName(){

return $this->name;

}

public function getSalary(){

return $this->salary;

}

public function setSalary($salary){

$this->salary=$salary;

}

public function copy(){

//return clone $this; 浅拷贝

$obj=serialize($this);

return unserialize($obj); //深拷贝

}

public function display(){

echo "$this->name has $this->salary\n";

}

}

$liangbopirates=new Employee('liangbopirates',1000000);

$copy=$liangbopirates->copy();

$liangbopirates->display();

$copy->display();

$liangbopirates->setSalary(800);

$liangbopirates->display();

$copy->display();