MediaWiki/extension

About

A MediaWiki extension is a type of plug-in module that extends the functionality of a MediaWiki site.

wooz:MediaWiki: some extensions and MW coding notes
What is composer.json for? "If an extension or skin has library dependencies, it may have a composer.json file as well, see Manual:Composer.json. Use the load_composer_autoloader field to make MediaWiki use Composer's autoloading when appropriate."

documented here:
- Semantic MediaWiki, and its extensions and features & functions
documented on mediawiki.org:
- Extension:AccessControl allows restricting access to specific pages based on internal groups or group lists from user space.
- Extension:Approved Revs lets administrators mark a certain revision of a page as "approved". The approved revision is the one displayed when users view the page at its main URL.
- Extension:External Data allows MediaWiki pages to retrieve, filter, and format structured data from one or more sources.
- Extension:FlaggedRevs
- Extension:Page Forms allows users to add, edit and query data using forms.
  - on SMW
- Extension:Page Schemas allows for defining all the schema information about a "class", or data type - for naming, display, data input, and browsing - within a single piece of XML contained within a category page.
- Extension:PhpTags implements a simplified/sandboxed PHP syntax for scripting.
- Extension:Widgets allows you to define raw HTML pages to be transcluded elsewhere.
- future support for this extension is uncertain:
  - Extension:Variables allows you to define/redefine a variable on a page, use it later in that same page or transcluded templates.