Array
(
    [0] => Array
        (
            [filterveld] => merk
            [filterkey] => 108
        )

    [1] => Array
        (
            [filterveld] => extralabel
            [filterkey] => Array
                (
                    [0] => 898
                )

        )

    [2] => Array
        (
            [filterveld] => model
            [filterkey] => 40
        )

    [3] => Array
        (
            [filterveld] => model
            [filterkey] => Array
                (
                    [0] => 40
                )

        )

    [4] => Array
        (
            [filterveld] => rve_caption
            [filterkey] => Array
                (
                    [0] => 7971
                    [1] => 2025
                    [2] => 5991
                    [3] => 1081
                    [4] => 220
                )

        )

    [5] => Array
        (
            [filterveld] => kleur
            [filterkey] => 11
        )

)