Array
(
    [cmd] => _cart
    [upload] => 1
    [business] => sb-bpf191030188@business.example.com
    [receiver_email] => sb-bpf191030188@business.example.com
    [invoice] => 56
    [currency_code] => EUR
    [return] => https://gpm-vet.de/index.php?option=com_hikashop&ctrl=checkout&task=after_end&order_id=56&Itemid=708
    [notify_url] => https://gpm-vet.de/index.php?option=com_hikashop&ctrl=checkout&task=notify¬if_payment=paypal&tmpl=component&lang=de&Itemid=708
    [cancel_return] => https://gpm-vet.de/index.php?option=com_hikashop&ctrl=order&task=cancel_order&order_id=56&Itemid=708
    [undefined_quantity] => 0
    [test_ipn] => 1
    [shipping] => 0
    [no_shipping] => 1
    [no_note] => 1
    [charset] => utf-8
    [rm] => 2
    [bn] => HikariSoftware_Cart_WPS
    [lc] => DE
    [item_name_1] => Roentgen App Testzugang
    [item_number_1] => R_APP-TEST
    [amount_1] => 150.00
    [quantity_1] => 1
    [tax_cart] => 28.50
)