Extension:UserFunctions

UserFunctions extension provides a set of dynamic parser functions that trigger on the current user.

Usage
By default the personal data functions #realname, #username, #useremail, #nickname and #ip are disabled. See here to see how to enable them.
 * - Tests whether the current user is anonymous.
 * - Tests whether the current user is blocked.
 * - Tests whether the current user is a sysop.
 * - Tests whether the current user is a member of the group "group". You can check for multiple groups as well:
 * - Returns the current user's real name. If the user is not logged in, this function returns the given alternate text, or the user IP if no alternate is provided.
 * - Returns the current username. If the user is not logged in, this function returns the given alternate text, or the user IP if no alternate is provided.
 * - Returns the current user's e-mail address. If the user is not logged in, this function returns the given alternate text, or the user IP if no alternate is provided.
 * - Returns the current user's nickname. If the user has no nickname, returns the username. If the user is not logged in, this function returns the given alternate text, or the user IP if no alternate is provided.
 * - Returns the current user's IP address.

By default functions are only enabled in NS_MEDIAWIKI namespace, for enabling them in other namespaces, check out the examples below.

Installation
download a snapshot (select your version of MediaWiki)
 * 1) Download the files from SVN with   or
 * 1) Place the files under
 * 2) Add to the end of LocalSettings.php:
 * 3) If you want to use the following functions: , add:   just after that line.
 * 4) If you want to enable functions in other namespaces apart from   (default), follow the model of some of the examples below.
 * 5) Installation can now be verified through Special:Version on your wiki

Allowing namespaces
By default, user functions only work in  namespace.

Below there are some examples of allowing or disallowing the functions to work in other namespaces. The syntax is based on the one used with subpages.

For Special pages, such as the ones used in Semantic Forms creation/modification, include the the NS_SPECIAL (or -1) namespace. Check below:

More info on namespace numbering.

Version history
Authors: Algorithm and others
 * Version 2.3 (May 27, 2012) fixed problems when using scripts and allowed multiple groups to be checked against in ifingroup. - Toniher
 * Version 2.2 (January 03, 2012) added $wgUFAllowedNamespaces parameter. Users need to define in which allowed NS functions will work. - Toniher
 * Version 2.1 (December 21, 2011) added $wgUFEnablePersonalDataFunctions parameter. Migrated $wgUser to ParserOptions equivalent - Toniher
 * Version 2.0 (December 13, 2011) added i18n and compatibility with other parser function extensions - Toniher
 * Version 1.5 (October 30, 2011) added ip - Kghbln
 * Version 1.4 (September 27, 2011) added realname - Kghbln
 * Version 1.3 (February 13, 2010) added useremail - Wikinaut
 * Version 1.2 (July 25, 2008) added ifingroup - Louperivois
 * Version 1.1 (June 27, 2008) added nickname - Lexw
 * Version 1.0 (May 21, 2006) - Algorithm