if (Auth::attempt ( array (
            'email' => $request->get ( 'email' ),
            'password' => $request->get ( 'password' ),
            'role_id'=>1|2|3,
        )

if (Auth::attempt ( array (
            'email' => $request->get ( 'email' ),
            'password' => $request->get ( 'password' ),
            'role_id'=>1,
        )