On the ZendCasts.com site there's a new screencast continuing their look at the Zend_Tool component by combining it with Zend_Log to do some easy reporting.

This video uses a collection of powerful PHP libraries in order to illustrate how easy it really is to build a command-line tool for reporting against XML files. We start off by logging visitor statistics in the controller into a log file with Zend_Log. Once data has been collected, we're then able to utilize SimpleXML, Zend_Date and the Zend_Tool component to build out a very simple reporting tool.

He suggests one possible use is to create a cron job that will regenerate the reports nightly. You can view the screencast in the post or download a copy of the project to get started right away.