logsplitter is a PHP-based splitter for Squid and Pound logs. It’s intended primarily for situations where Squid is being used as a reverse proxy (HTTP accelerator) or where Pound is being used as a load balancer. It’s pretty simple really; it takes the normal Squid/Pound access log as an input and then splits it into a set of log files that look like an Apache “combined” access logs, with the addition of Squid hit/miss information on the end in the case of Squid logs (because this is useful for other purposes, like producing hit/miss statistics).

For more information, see the README.