尝试上传laravel中的文件

I am trying to upload multiple files which in Laravel but not able to do so..

my php code ( All the session values are there.

session('prescriptionFiles') has the tmp_name values. session('prescriptionFilesName') has the file names

public function selectAddress()
    {
        $prescriptions = session('prescriptionFiles');
        $prescriptionsFileNames = session('prescriptionFilesName');
        $userId = Input::get('userId');


        for($i=0; $i<count($prescriptions); $i++){
           move_uploaded_file($prescriptions[$i], "files/$prescriptionsFileNames[$i]");
        }
    }

any help will be highly appreciated