PhpWiki - a PHP WikiWikiWeb

PhpWiki WikiWikiWeb HomePage

A WikiWikiWeb is a web site where anyone can edit the pages through an HTML form. Linking is done automatically on the server side; all pages are stored in a database.

PhpWiki at Sourceforge.
Installation of PhpWiki is as simple as untarring the source distribution. PhpWiki works right out of the box. You will want to make configuration changes later for better performance and permanence, or to run PhpWiki off a relational database like MySQL, mSQL or Postgresql. Download PhpWiki: http://sourceforge.net/projects/phpwiki/