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Manual on MediaWiki Extensions
List of MediaWiki Extensions
User Merge and Delete

Release status: stable

Implementation  Special page, User identity
Description Merges references from one user to another user in the Wiki database - will also delete old users following merge
Author(s)  Tim Laqua
Last Version  1.0 (07-27-2007)
MediaWiki  1.10+
License No license specified
Download MediaWiki SVN

User Merge and Delete extension allows Wiki users with the 'userrights' permission (Bureaucrat by default) to merge one Wiki user's account with another Wiki user's account - deleting following merge is also supported. You may not delete a user without merging first - omitting the "New User" field will auto-populate the New User as User ID 1 (Usually WikiSysop) and ask you to confirm merge to Admin. Merging to Anonymous (ID0) is not supported.


  1. Create a new folder (directory) in the following location:
  2. Download the three required files:
  3. Copy the three files in to the new UserMerge folder
  4. Add the following code to your LocalSettings.php (at the bottom)

<syntax lang="php"> require_once( "$IP/extensions/UserMerge/UserMerge.php" ); </syntax>


  1. Follow Installation Instructions
  2. You will have a new Restricted Special Page titled User Merge and Delete