PHP-based

Please note that some of the Wikis below have no or limited support for international characters; check the features of the individual Wikis for specifics.

• GetWiki is a highly modified version of MediaWiki 1.1.0
• BusinessWiki is an enterprise wiki
• NotePub is an online notepad with wiki functionality and privacy settings on a note by note basis.
• CMS Wiki is extremely fast Wiki that reuses POH (Plain Old HTML) for formatting with easy-to-use WYSIWYG editor
• MediaWiki was custom-designed for the high-volume Wikipedia encyclopedia project; it is also used for all other projects run by the Wikimedia Foundation, which operates Wikipedia. It is written in PHP and uses a MySQL or PostgreSQL database backend; however it is publicly available and suitable for tailoring to other applications.
  • IpbWiki inherits the functionality of MediaWiki and adds on integration layer to Invision Power Board on top of it (single sign on, forum content in wiki, article rating system, etc...)

• Special:MyPage/PortiliTeamWiki is an enterprise wiki with an emphasis on simplicity and aesthetic.

• TigerWiki is a minimalist and simple wiki framework. It is called Wikiss now.
  • LionWiki is much improved fork.
  • WiKissMe is another derivative. It has plugins and modules architecture: blog; comments; captcha. Supports themes with templates as well.
• TikiWiki CMS/Groupware is one of the larger and more ambitious wiki development projects, including a variety of additional groupware features (message forums, articles, etc.).
  • Bitweaver is a fork with an emphasis on speed rather than secondary features, comes with the Liberty CMS engine and has extensive support for the Firebird database. Just like TikiWiki it comes with groupware features and support for many database software.
• DokuWiki is a simple-to-use Wiki aimed at the documentation needs of a small company. It uses plain text files and has a simple but powerful syntax which ensures the datafiles remain readable outside the Wiki.
• Kisimi is a simple Wiki system aimed at open documentation on any subject. Based on the DokuWiki syntax, content is saved into a database. Features include security, category ownership, messaging and the ability for authors to apply licenses to their work. Kisimi also has an internal messaging system for communication between users.
• PhpWiki is a WikiWikiWeb clone in PHP.
• PmWiki is a PHP-based wiki. Features include: GPL-licensed, easy installation/customization, designed for collaborative authoring and maintenance of web sites, and support for Internationalization. Does not require a database.
• PukiWiki is a PHP-based wiki (Japanese). Their site has not been fully translated into English.
• WakkaWiki is a PHP/MySQL-based lightweight wiki engine. Wakka is no longer maintained, but survives in a number of forks:
  • CitiWiki
  • UniWakka is another fork of Wakka, aims at providing a collaborative authoring tool for scientific web content. It supports WikiFarms installations, MathML, footnotes, tables of contents, bibtex import and export, latex export, latex-like citations, OpenOffice export and more.
  • WackoWiki is a fork of Wakka, with many new features and multilingual interface. Shares several modules, developers and a bugtracker with an NPJ engine.
    • WackoWikiQuickStart is a fork of WackoWiki. Includes modules support (called extensions), visual HTML editor (Spaw), AJAX library and Smarty template engine. Can be used as classic CMS.
  • WikkaWiki is a light, standards-compliant, configurable fork of Wakka with many improvements and new features (among which native support for Mindmaps).
• Wiclear is a simple PHP/MySQL-based lightweight wiki engine targeted at data organization and multiple languages. It also features customization via themes and extensibility via plugins.
• WikyBlog is a hybrid application with a number of AJAX enhancments that does not implement a WYSIWYG editor.
• Private Wiki - Includes authentication and encryption of pages.