Not one to read cover to cover. Think of it like a cook book with much shoter recipies. This is allways with me. Need a quick function, its in there. A must for pocket reference lovers.
Pro PHP Security
A great book. It starts with having you examine the base you are running your scripts on. IE it is pointless to secure the hell out of a PHP script if you are running it on Windows me and 3 year old apache. It walks you from start to finish. Well finish as of today.
Ajax and PHP Building Responsive Web Applications
My New site OpenEyes