Array
(
    [0] => Array
        (
            [id_product] => 3502
        )

    [1] => Array
        (
            [id_product] => 3501
        )

    [2] => Array
        (
            [id_product] => 4448
        )

    [3] => Array
        (
            [id_product] => 2310
        )

)
llArray
(
    [0] => Array
        (
            [id_product] => 3502
        )

    [1] => Array
        (
            [id_product] => 3501
        )

    [2] => Array
        (
            [id_product] => 4448
        )

    [3] => Array
        (
            [id_product] => 2310
        )

)