Well I was doing a shopping cart system with php but I got to a level I got stuck ...
As "everyone" knows in the PagSeguro API for HTML payment you should declare the items to be paid example:
<input name="itemDescription1" type="hidden" value="'.$plugin_name.'">
In my case I wanted to change the itemDescription1 to + a number according to the items in the cart ....
If the person has 4 items in the cart PHP should change the itemDescription1 to an additional number according to the quantity of item in the cart type ... 1, 2, 3, 4 ...
And another question would be how do I get cookies from other browsers because they identify the user and their respective products? link
And if the user changes the browser, I'll lose this information ...