php怎样将数组拆分后传递给函数

//声明需要Benz和Audi，将其实例化后传入方法

$app->controller("Benz", "Audi", function ($Benz, $Audi){

    echo $Audi->go()->speedUp()->speedUp()->speedUp()->speedDown()->getSpeed();

    echo $Benz->go()->speedUp()->speedUp()->speedUp()->speedDown()->getSpeed();

    echo "\n";

    echo "arrival";

});

class App{

    function controller(){

        $args = func_get_args();

        $reliable = [];

        foreach ($args as $arg){

            if(!is_callable($arg)){

                $rf = new \ReflectionClass( "\" . __NAMESPACE__ . "\" . $arg);

                $instance = $rf->newInstance();

                $reliable[$arg] = $instance;

            }

        }

        //这里如何传入参数

        $args[count($args) - 1]();

    }

}

controller

Benz

Audi