shoppingCart Object
(
    [contents] => Array
        (
        )

    [total] => 0
    [weight] => 0
    [content_type] => 
    [free_shipping_item] => 0
    [free_shipping_weight] => 0
    [free_shipping_price] => 0
    [download_count] => 0
    [total_before_discounts] => 0
    [display_debug_messages] => 
    [flag_duplicate_msgs_set] => 
)