QuaaxTM 0.7.4 release by Johannes Schmidt.
A new release of QuaaxTM
From the webpage (http://quaaxtm.sourceforge.net/):
A PHP Topic Maps engine with persistent storage which supports ISO/IEC 13250-2 Topic Maps Data Model (TMDM).
QuaaxTM is a PHP Topic Maps engine which supports ISO/IEC 13250-2 Topic Maps Data Model (TMDM).
The TMDM is a subject centric data model.
QuaaxTM implements the PHPTMAPI core and index interfaces. PHPTMAPI is based on the TMAPI specification and provides a standardized API for PHP 5 to access and process data held in a topic map.
QuaaxTM persists Topic Maps data using MySQL with InnoDB as storage engine and therefore benefits from transaction support and referential integrity.