This script will crawl web application/sites written using PHP looking for any PHP errors that might have been printed in the html markup and gone unnoticed by the developer(s).
It will take an url as the input to start with and crawl it to find errors. Also, while being at it, it will accumulate a set of other internal urls to crawl and loop over until the entire application is checked.
I know its a bit weird but it works for me!
$ python bugcrawler.py urlAuthentication - Crawling the app as a logged in user