Post PHP data to Jigoshop or similar wordpress plug in

Avg Bid (GBP)
Project Budget (GBP)
£70 - £250

Project Description:
I need to post PHP data to Jigoshop or similar wordpress plug in, this is because i have variable data from a small online design application that i use and i want users to checkout but i need to be able to post in PHP from the app this data:

Design ID which is unique then the things which are not unique such as:

Product Chosen with size
etc etc

I already have it working in roman cart but due to the way it works i wish to move away so i already have a working PHP script but it needs to work now in jigoshop or a similar wordpress plug in

Skills required:
Graphic Design, HTML, PHP, Website Design, Wordpress
About the employer:
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£ 210
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