Use of eBay API in PHP to retrieve My eBay information

Question

Hi,

I am on working on a personal project to write a PHP website which will allow me to easily track all my purchases/bids/watch list on eBay. As you know, purchases which are older than 2 months (I think) can't be seen on eBay; but I would still like to keep track of them. So I would be using the eBay API's to retrieve the information and then write it to my database.

My question is: which API's do I use to retrieve the information I mentioned? Or better still: would you know any script or website or anything that already does what I'm trying to do, even if partially?

Thanks in advance,

Yusuf