// 1 抽象原型角色

interface Prototype{

    public function shallowCopy();

    public function deepCopy();
}

// 2. 具体原型角色

class ConcretePrototye implements Prototype{

    private $_name;

    public function __construct( $name ){
        $this->_name = $name;
    }

    public function setName( $name ){
        $this->_name = $name;
    }

    public function getName(){
        return $this->_name;
    }

    // 浅拷贝
    public function shallowCopy(){
        return clone $this;
    }

    // 深拷贝
    public function deepCopy(){
        $serialize_obj = serialize( $this );
        $clone_obj        = unserialize( $serialize_obj );

        return $clone_obj;
    }

}

// 3 使用
class Demo{
    private $str;

    public function setStr( $str ){
        $this->str = $str;
    }

    public function getStr(){
        return $this->str;
    }
}

class UsePrototype{

    public function shallow(){

        $demo = new Demo();
        $demo->setStr('vic');

        $shallow_first  = new ConcretePrototye( $demo );
        $shallow_second = $shallow_first->shallowCopy();

        var_dump($shallow_first->getName());
        echo '<br/>';
        var_dump($shallow_second->getName());
        echo '<br/>';
        $demo->setStr( 'myvic' );


        var_dump($shallow_first->getName());
        echo '<br/>';
        var_dump($shallow_second->getName());
        echo '<br/>';
    }

    public function deep(){
        $demo = new Demo();
        $demo->setStr('vic');

        $shallow_first  = new ConcretePrototye( $demo );
        $shallow_second = $shallow_first->deepCopy();

        var_dump($shallow_first->getName());
        echo '<br/>';
        var_dump($shallow_second->getName());
        echo '<br/>';

        $demo->setStr('myvic');
        var_dump($shallow_first->getName());
        echo '<br/>';
        var_dump($shallow_second->getName());
        echo '<br/>';
    }
}

$up = new UsePrototype();
$up->shallow();
echo '<hr/>';
$up->deep();