Array
(
    [4] => Array
        (
            [0] => 48
            [1] => 50
            [2] => 52
            [3] => 53
        )

    [6] => Array
        (
            [0] => 109
        )

    [1] => Array
        (
            [0] => 4
        )

)
TypeError: explode(): Argument #2 ($string) must be of type string, array given in /var/www/sunshinediamonds.com/htdocs/catalog/model/catalog/product.php on line 158