A1-Stats allows you to monitor how many people are visiting your site and where they come from. It is easy to install and configure using the auto-configure function. It should not be necessary to make any changes to the code. A1-Stats does not use system log files, so it should be able to run on any system.
Traffic Log is a web statistics script. Traffic Log enables you to track hits and unique visitors, hits by page, by date, browser and captures the entry page for each visitor. The log file can be purged of old visits through use of the script.