If you have ever visited StackOverflow.com you may have noticed the ads for Splunk. Splunk aggregates log files together and provides a web interface to search through those logs. The setup for php is easy: set the php.ini error_log value to "syslog". The Splunk instructions show you how add a single line to your syslong.conf to have syslog send those messages over to Splunk.
February, 6 2010