[Opserty]

Fair enough, don't worry we all started out this way. Hmm the first thing you need to do is learn PHP, there are thousands of PHP tutorials out there (just google for "PHP Basics") or something like that. Then you need to learn how PHP interacts with MySQL (MySQL is the most popular database software that people couple with PHP, I'm assuming your host does support it), google "PHP and MySQL Basics" and you should get some guides. Then finally you'd need to look at file management in PHP and that.

I could sit here and teach you everything but a) I don't have the time or the willpower and b) everything (and I mean everything) is already out there on the web. You just need to search for a bit and learn the basics slowly build up. Don't expect to learn it in a few days it will take a few weeks of coding the basics to start to memorise things such as syntax e.t.c.

I would recommend you start of with the aim of just getting some kind of database interaction and manipulation. Leave the file management and upload until you are sure you can understand the database stuff.