PHP DEVELOPER

I apologize if I misunderstood you, but did you mean you have problems with basics of C language?

Note that PHP and C have a little to none in common, so you don't have to worry about that. I would advise you to go through this PHP tutorial, after that try out these coding tests for PHP developers.

With this you'll have a pretty good grasp of PHP framework, now all that is left is to practice by building some sites.