Stephan Schmidt has posted a new note today about the upcoming publication of "Exploring PHP", a book he's been working on.

I have been working on this together with Frank, Christian, Sandro and Kore and the book features five articles on advanced PHP topics. All articles in the book have been written in German.

He specifically mentions a part he contributed - a look at event-driven development (for component applications). The book also talks about using various PEAR packages and SimpleTest. The planned release date is August 17th from Entwickler Press (published in German).