Eirik Hoem has written up a review of one of the latest PHP-related books from Packt Publishing, "Expert PHP5 Tools".
If you are working with PHP you'll want to read this book. Covering topics like continuous integration, documentation and unit testing thoroughly it gives an insight of great value to any PHP developer.
The review touches on the contents of the book including unit testing, application deployment, version control and how to get your development set up in a more professional way overall. You can find out more about the book from the sample chapter Packt has on their site.