One of my super short reviews on the books I read in my My Way to PHP series.
Programming PHP by Rasmus Lerdorf, Peter MacIntyre, and Kevin Tatroe
Cowritten by Lerdorf who is the original creator of PHP. The book features the history 
of PHP, the language basics, functions and objects. It also shows several modules like GD or the PDF module and PDO.
What I really liked about the book was that it was very readable and provided a good reintroduction in PHP. It covered newer features thanks to the release date of the book. I think it was well written. Very solid book!
I recommend it if you want to go back to PHP or if you have experience in an other procedural language.