First thing of interest is the newest columns over on Zend.com called the Code Gallery Spotlight. It looks like a spotlight on a certian author with a column written by them. The first is by John Coggeshall and is all about Keeping your Dynamic Pages Dynamic. This stresses the fact that even though PHP is inherently dynamic, you need to keep the content dynamic too.
Also, the NewbieNetwork has a new article about The Birth of a Function that talks about how to write functions for PHP. Nice intro tutorial.
And last but not least, PHPBuilder finally updated with a new article about the Fundamentals of Web Application Development and talks about the keys to having a successful web-based application.