Wouldn't have a clue mate, however just do a search for PHP.
ALSO before you buy what you want - sign up to there affiliate program, and then buy the book(s) you want via the affiliate link, so then you get a little bit of money from each book you buy - for yourself
![Stick Out Tongue](images/smilies/tongue.gif)
(However i dont think you can withdraw till a certain amount though
![Frown](images/smilies/frown.gif)
)