Paloma is a program to manage an SQL database of digital music files, and facilitate their retrieval and playback in interesting ways. It works with music files of any form -- MP3, Ogg Vorbis, MIDI... whatever you've got a player for. Paloma makes it easy to rip your entire CD collection and store it on your hard disk (or a collection of CD-Rs) for instant random access; playlists can then be generated using arbitrary SQL commands.
Phormation is a set of PHP functions which provide a framework for developing any HTML form connected to a database backend (currently PostgreSQL, MySQL, and ODBC are supported). It allows you to write and make use of reusable widgets so you can develop Web sites more quickly. Phormation has more than 10 widgets including text field, date, file upload, and foreign key select, and is easily extensible. It has good documentation.
PhotoShelf is a complete Web-based system for archiving, categorising, displaying, and managing photos. It has features and aesthetics missing in other systems, making it the only package needed for complete digital image housing. Features include Web upload of jpg, tarball/zip files, ability to read EXIF information from digital camera images, nested albums, efficient storage system, slide shows, and online help.
PHP-Nuke is a Web portal and online community system that includes Web-based administration, surveys, access statistics, user customizable boxes, a themes manager for registered users, friendly administration GUI with graphic topic manager, the ability to edit or delete stories, an option to delete comments, a moderation system, referer tracking, integrated banner ad system, search engine, backend/headlines generation (RSS/RDF format), Web directory like Yahoo, events manager, and support for 33 languages and 9 database servers.