Decorator(装饰器)模式能够像标准的继承一样为类添加新的功能。

不同于标准继承机制的是,如果对象进行了实例化,Decorator模式能够在运行时动态地为对象添加新的功能。

     price;    }    public function getManufacturer(){        return $this->manufacturer;    }}class CarDecorator extends AbstractCar{    private $target;    public function __construct(Car $target){        $this->target=$target;    }    public function getPrice(){        return $this->target->getPrice();    }    public function getManufacturer(){        return $this->target->getManufacturer();    }}class NavigationSystem extends CarDecorator{    public function getPrice(){        return parent::getPrice()+1000;    }}$car=new Car();$car=new NavigationSystem($car);echo $car->getPrice();?>