PEAR::MDB2 is a merge of the PEAR::DB and Metabase php database abstraction layers. Compatible with PHP 4.3.x upto 5.x It provides a common API for all supported RDBMS. The main difference to most other DB abstraction packages is that MDB2 goes much further to ensure portability. Among other things MDB2 features: An OO-style query API A DSN (data source name) or array format for specifying data