Killerphp.com is a web site dedicated to teaching web designers how to create dynamic websites with PHP.
I (personally) have found that most books and websites that teach PHP, tend to target programmers and not web designers.
I do my best to avoid nerd-jargon and pay special attention to concepts and ideas that might cause problems for the average web designer.
My goal is to filter and simplify PHP to make stupid-easy to understand and use.