Need php expert to write small integration code

I need someone who is very smart in php and can catch on to almost any thing. The scope of this project is to have someone take my integration code and modify it to catch shopping cart variables like product id, and total cost. every shopping cart is different, but send the same variables. The goal of my project is to take my integration code and modify it to fit every shopping cart software whether php or cgi. Mostly php. I will post a sample integration code in pm. THis project is per integration project.