The Bakery Everything CakePHP

This will repeat messages from the error.log as well as variables, form data, validation errors, session data, and other useful info into the Firebug console window. Other than the normal log usage, you don't have to tell it to trace anything, it'll get the info automagically.

When I uploaded a Cake-based site to a 1and1 shared hosting account, I got some mysterious 500 errors despite the site working perfectly on my dev machine.