Array
(
    [prop] => Array
        (
            [2] => Array
                (
                    [0] => 326
                    [1] => 417
                    [2] => 439
                    [3] => 450
                    [4] => 455
                    [5] => 526
                    [6] => 617
                    [7] => 623
                    [8] => 690
                    [9] => 696
                )

        )

)