W3C XML 1.0 Specifications
Enterprise Application Patterns, by Martin Fowler
The LGPL (Lesser Gnu Lesser Public License)
The Gnu FDL (Free Documentation License), the license used for this documentation
ALYOOP - a Simple PHP5 DAO framework.
Binarycloud - Enterprise application framework for PHP
Combine - Application framework based on Turbine
Creole (DB Abstraction for PHP5)
PEAR-compliant DAO tool.
PEAR DB_DataObject. Official PEAR O/R mapping solution, by Alan Knowles.
PEAR DB_Table. PEAR table abstraction solution, by Paul M. Jones.
Creole (DB Abstraction for PHP5)
EasyORM (MySQL-only object persistence for PHP)
Metastorage (MetaL & Metabase object persistence for PHP)
PEAR (Php Extension Archive Repository)
The Phing project - PHP build tool based on Apache Ant.
The PHP homepage - PHP Hypertext Preprocessor
The Apache Torque project - object persistence for Java.
Short manuals for CVS
CVS and tigris.org
User Guide for Phing