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Manual:Categories

From mediawiki.org

Categories in MediaWiki are used to group similar pages, and groups of similar groups, together to form one or more tree-like hierarchies.

Database

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MediaWiki keeps category data in the category and categorylinks tables.

API

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Several API modules provide access to category information: API:Categories , API:Categoryinfo , API:Allcategories , API:Categorymembers

User interface

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A number of category extensions are available; one of the more popular ones, CategoryTree , provides a dynamic view of the wiki's category structure as a tree.

See also

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