Array
(
    [prop] => Array
        (
            [2] => Array
                (
                    [0] => 442
                    [1] => 555
                    [2] => 578
                    [3] => 614
                    [4] => 622
                    [5] => 623
                    [6] => 668
                    [7] => 695
                    [8] => 711
                    [9] => 714
                    [10] => 720
                )

        )

)