phpicradius is a direct port to PHP of radius.cgi that comes with the ICRadius package. ICRadius itself is an authentication server that stores all information in a MySQL backend and comes with a web based administration tool.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.