Array
(
    [0] => Array
        (
            [filterveld] => merk
            [filterkey] => 47
        )

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

    [2] => Array
        (
            [filterveld] => pasvorm
            [filterkey] => 1042
        )

    [3] => Array
        (
            [filterveld] => sale
            [filterkey] => 1
        )

)