PHP FlatBoard is a free distribution discussion board for PHP which requires no database support. Still in development, PHP FlatBoard aims to be a fast, high quality system, just as powerfull as the commercial database driven systems.
PHP-Post is a new forum which contains the same features as most other discussion board software, but is slimmed down (the download is well under 200KB). It uses PHP and a MySQL database. v0.3 includes a range of bugfixes and an improved private messaging system.
phpBB is a fast, efficient discussion board program built in PHP with a muti-database backend. Features include: posting, replying, private messages, polls, username/ip banning, strong encryption for storing passwords, user rankings, very advanced access control for private forums, full templating, simple yet robust translation system and much more.
Lets you offer free forum hosting for your visitors, everything is handled instantly. Incudes 90 templates, 50 languages and mroe modifications. Based on phpBB forums.
phpBoard is a web based message board system similar to UBB. It is designed to integrate Apache, PHP, and mySQL together to help you help people communicate together. It currently features: forum moderation, backend admin, category support, and more.
phpForumPro is a powerful,private protected, fast and efficient discussion forum application built on PHP4 and MySQL. Features include: unlimited Categories; topics and messages;
user authentication; user rankings; message ratings; file uploads; advanced permissions support; fast and powerful search engine; powerful Full-featured administration; Forum moderator support; Lost password auto-email; 100% Language independence; Extendibility of the code; Easy Installation with the help of user-friendly installation wizard;
phpMyCoCo stands for "Count and Comment". It allows you to count Hits and add comments for any single page. It uses a MySQL database on backend for data handling, and administration is done with phpMyAdmin.