yoursurrogategod

MOAR regex info: http://vimregex.com Granted, it's VIM specific, but still.

Maybe I missed it, but I couldn't find a single Regular Expressions book in the thread. So here is one. I belive that it's open-sourced. http://bookshelf.theopensourcelibrary.org/2009_OReilly_RegularExpressionsCookbook.pdf Not a book, but good as well: http://coding.smashingmagazine.com/2009/06/01/essential-guide-to-regular-expressions-tools-tutorials-and-resources/

This is not a PHP book (it's Lisp gentlemen), but still a programming book that touches ever so slightly on AI (very slightly). The best part? It's free! http://www.gigamonkeys.com/book/