This page is a translated version of the page Help:User preference option and the translation is 50% complete.

User preference options (UPO) refer to settings in the files DefaultSettings.php or LocalSettings.php of MediaWiki and extensions to it that may be changed afterwards by a wiki user in their personal account settings on Special:Preferences, e.g. $wgEnableUserEmail or $wgEnotifUserTalk , etc.