Manual:$wgUserrightsInterwikiDelimiter

User accounts, authentication: $wgUserrightsInterwikiDelimiter
Character used as the separator between username and database name on Special:UserRights.
Introduced in version:	1.15.0 (r48765)
Removed in version:	Still in use
Allowed values:	(string)
Default value:	'@'
Other settings: Alphabetical | By function

Details

The character is used as a delimiter when testing for interwiki user rights (In Special:UserRights, it is possible to modify users on different databases if the delimiter is used, e.g., Someuser@enwiki).

It is recommended that you have this delimiter in $wgInvalidUsernameCharacters , or you will not be able to modify the user rights of those users via Special:UserRights.

MediaWiki version:

≥ 1.27

Since MediaWiki 1.27, this character is also a delimiter in bot passwords .

See also

• $wgInvalidUsernameCharacters