I am new to php and learning wordpress. I have navigated it pretty well but I'm looking into building themes for wordpress and learning php for some clients that want their themes edited. I'm wondering if there are any resources out there for learning php from the ground up. I know it said online it is similar to a C+ language. I was wondering too how difficult it is to learn. I know Html and css very well, but i know i need to learn java and php. Help plz!