What are some prior knowledge required to get started in CodeIgniter?

[eluser]Bramme[/eluser]
Some basic understanding of OOP is required I'd say... At least it makes it easier to understand. your mysql knowledge has to be extensive as you'll need it... If you want to make a backend with comments and categories for posts etc, you'll have to know a thing or two about joins and so, but as for the rest, you should be fine.