Kevin Schroeder has a recent post to his blog about a handy trick Zend Framework developers can use to have Zend_Log write out to multiple sources at once pretty easily.

If you were not aware, Zend_Log provides facilities for writing to multiple logs through the same log instance. Additionally, you can do this via configuration options when using a Zend_Application resource plugin. Together those make for very powerful logging mechanisms. "How?" you ask? It's really easy.

The trick lies in the application.ini file configuration. He includes an example of how you can set this up showing how to make two different environments log differently - development writes to log/firebug and production just writes to the log. He includes some sample code for a basic controller showing you how to use it.