PEAR Session Handler stores PHP4 session information in a database so that it is not only faster to retrieve, but it can (generally) handle a much greater load, and is able to be safely shared between machines without significant performance penalty. By default, the PHP session handler uses text files to store session information. While this is fine for smaller sites, it does not scale well and a more robust approach is required for larger sites. Unlike database-specific alternatives, pearsession supports all PEAR databases including Interbase, Informix, mSQL, MySQL, MS SQL Server, PostgreSQL, Oracle, Sybase, and others via ODBC.
The Text_Wiki package allows you to transform text structured using Wiki rules into any defined target output format. For example, you can convert Tavi-style Wiki text into XHTML, original C2-style Wiki text into XML, MeatBall style Wiki text into LaTeX, or any other Wiki markup rules into any other format (provided it's programmed properly).
PHPUnit is a family of PEAR packages that supports the development of object-oriented PHP applications using the concepts and methods of Agile Programming, Extreme Programming, Test-Driven Development, and Design-by-Contract Development by providing an elegant and robust framework for the creation, execution and analysis of Unit Tests.