Php Log Analyzer (aka PLA) is a Log Analysis tool for Apache. There are lots of log analyzer softwares available on the internet but most of them have their own data storage ways. PLA is a tool to analyze log files and store results into MySQL databases.
Myq3log is a Quake 3 Log analyser. It use Php to parse the log files and mysql to store data in.
You can browse in those data with a php interface too.
xjnm is a java daemon that gathers numbers from arbitrary sources (e.g. cpu usage) and can store it on arbitrary storages (e.g. a jdbc database) for later analysis or react in arbitrary way to the data collected (e.g. inform an administrator by e-mail).
Store and display syslog data through a MySQL engine. This software can also optionally break down embedded format data in the message string into unique database fields for later viewing.
Simple php database logging class with a simple front end to view logs. Allows fine grained tagging. You can also store data with each log and tag a log with as many tags as you need