Unit testing, mock objects and web testing framework for PHP built around test cases. If you know JUnit/JMock or some of the PHPUnit clones this will need no explanation. Includes a native webbrowser for testing web sites directly (no JavaScript).
XajaxGrid is a cross-browser JavaScript grid control that represents data in a sortable DHTML table. This component allows you to design quicky user interface by organizing your data into configurable dynamic grid, buffering and dynamical loading.
phpOBrowser is a dynamic object browser that allows you to browse through all available folders, files, sections, and objects in any php application and see classes, properties, methods and constants that are available.