A PHP directory offering tools and modifications for common PHP applications. Offerings include pre-written classes, bulletin board code and an XML renderer.

Provides a framework to benchmark PHP scripts and function calls. The PEAR site also contains hundreds of other pre-built packages. [Open source, GPL]

A PHP extension to the PHP Zend engine that accelerates compilation and execution of scripts. Also works with the Smarty templating system. Available for BSDi, Linux, OpenBSD, FreeBSD, and Solaris. [Freeware]

A bottom-up rewrite of the PHP scripting engine. It features a modular architecture, vastly improved performance, and greater scalability. [Commercial]

A PHP extension for powerful debugging. It supports stack and function traces, profiling information and memory allocation and script execution analysis.

The spot for people using HomeSite for PHP or ASP development to find help and to exchange add-on extensions, resources, help, links, tips, requests and articles.

A PHP and HTML editor designed to be a lightweight and easy to use application.

a Delphi-like RAD tool for PHP.

Provides an all in one solution to install Apache, PHP and MySQL on a Mac OS environment.

A combined Apache, MySQL, and PHP installer package for Windows and Linux. It supports user-defined configuration during installation including PHP as a module, PEAR, and the Zend Optimizer. The website also offers a support forum. [Freeware]