Can anyone recommend me a good book/tutorial on PHP?

jhae2.718

I'll be doing some back-end coding for the website of the lab I work in, so it looks like I'm going to have to pick up PHP.

I do programming in Python, C++, and MATLAB, so if someone could recommend me a good "for programmers" (e.g. more of a brief review of syntax, libs, etc.) book I would be appreciative. I've been considering one of the O'Reilly books, but if any PHP-ing PFer's have a recommendation I'd like to hear it before I buy.

Thanks!