mcGuestbook is a simple guestbook that allows your visitor to show an image, like a little banner, with his/her message, modify all the design parameters through a password protected administration panel, and delete unwanted messages. Optionally mcGuestbook sends you email when new messages are submitted. The installation is fully automated, with English and French currently supported.
While not exactly a banner exchange, AutoPub allows your visitors to insert a link in your home page with a little banner to their site, until an other visitor replaces it with his. The old one goes to a gallery page. A protected admin panel allows you to modify all configuration parameters: displaying delay, banner size, fonts, colors, etc. Installation is fully automated, and there is French and English language support. It requires MySQL.
clsTable.inc is a PHP class which builds HTML tables. Its features include a sort function, a pagination function, title row functions, font formatting functions, support for rows and colspans, the ability to set layout attributes (borders, colors, width, etc.), precell/row postcell/row functions for intricate forms that don't skew final table output, and functions to tweak any of the options for a table.
PHP/Toolbox is designed to make the process of creating database-powered Websites easier. It utilizes the iterative, or step-by-step development paradigm. It therefore enables you to create fully-functional Web interfaces for an arbitrary set of DB tables within minutes. Any changes you make in these tables after the test driving will be handled automatically. You can then adjust this automatic interface in an iterative manner to suit your specific needs.
OpenBB is a discussion bulletin board application written in PHP. Main features include full customization via styles/templates, instant messaging, private messaging, categories, member ranks, a cache template system, boolean searches, thread rating, poll-based threads, moderation, SWF/Flash signatures, BB codes, thread notifications, ICQ/AIM messaging, Avatars, member lists, private forums and more.