PHP error logging framework and reports

[thing3b]

I have always been a fan of watching my log files and my custom CMS now has separate log files for watching redirects, 404s, PHP errors and even inter-site communication (pings etc).

The problem I have is that these are all just going to text files and in some cases the text files are over 1MB per day.

Can anyone point me to a PHP program that I can call via an API like:
Log::LogError(404,'Blah')
And that can take errors or debug lines and make useful reports out of them?

[sabai]

PEAR logging is the standard way to log from PHP apps.

[pear.php.net...]

Log to file, DB, anything you like. But it doesn't do any analysis, or present the logged data in any way.