Hi, I was wondering if someone could guide me, and tell me the things I would need to know to code a simple auction site. Just basic stuff like register, list, auto-end auction on a date and time, listing fees, admin control and so on in PHP.
Thank you.

You need a database, a host or setup apache on your local machine, then you need to get an editor, like notepad++ if your on a pc. Then you need to create some tables and stuff in the database, then like connect to it in the code, and do stuff like, add-list, edit-list, delete-list, register, login, logout etc.

An auction site isn't exactly simple to do, you need to have to good security on it.