SecurityFacade::activate PHP Method

    public function activate()
    {
        $this->_camera1->turnOn();
        $this->_camera2->turnOn();
        $this->_light1->turnOn();
        $this->_light2->turnOn();
        $this->_light3->turnOn();
        $this->_sensor->activate();
        $this->_alarm->activate();
    }

        $this->_light1 = new Light();
        $this->_light2 = new Light();
        $this->_light3 = new Light();
        $this->_sensor = new Sensor();
        $this->_alarm = new Alarm();
    }
    public function activate()
    {
        $this->_camera1->turnOn();
        $this->_camera2->turnOn();
        $this->_light1->turnOn();
        $this->_light2->turnOn();
        $this->_light3->turnOn();
        $this->_sensor->activate();
        $this->_alarm->activate();
    }
    public function deactivate()
    {
        $this->_camera1->turnOff();
        $this->_camera2->turnOff();
        $this->_light1->turnOff();
        $this->_light2->turnOff();
        $this->_light3->turnOff();
        $this->_sensor->deactivate();
        $this->_alarm->deactivate();
    }
}
//client
$security = new SecurityFacade();
$security->activate();