php script to become an affiliate

[Complete]

Has anyone written the php code to do all affiliate work on their website? In other words, rather than using affiliates, become an affiliate. I imagine it involves some pretty intensive PHP and MYSQL code.

[Yahook]

It's not too easy to make this script because you must know a lot about security.

There are lots of ready scripts to becom an affiliate:
http://webintel.net/aspreferral/admin/
http://www.affiliatewiz.com/affiliatewiz/admin/