Extension:CategoryIntersection

What can this extension do?
This template creates a special page - Special:CategoryIntersection.

You put in a list of categories to this page (separated by newlines), and the extension returns the articles that are in all the categories listed.

It stores hashes of what categories a page is in in a separate table in db to (I assume) make things efficient.

Somewhat akin to the DynamicPageList extensions (but probably much more efficient).

This extension might not handle a single page being in a large number of categories very well.

Installation
To install this extension, do the following:

add the following to : Run the  maintenance script Run the  maintenance script. ( This may take a long time if you have a lot of pages on your wiki. If you don't do this step, the extension will only find pages that had their categories added after the extension was installed )

Deployment
Use this wiki mark-up code on the wiki page to view the results.

Examples
Some example wiki pages that use this extension include: ( Feel free to insert your wiki page. )