Manual:Hooks/NormalizeMessageKey

NormalizeMessageKey
Available from version 1.13.0 Removed in version 1.27.0 Allows extensions to change what system message will be displayed on a page
Define function:	public static function onNormalizeMessageKey( &$key, &$useDB, &$langCode, &$transform ) { ... }
Attach hook:	In extension.json: { "Hooks": { "NormalizeMessageKey": "MediaWiki\\Extension\\MyExtension\\Hooks::onNormalizeMessageKey" } }
Called from:	File(s): GlobalFunctions.php
Interface:	NormalizeMessageKeyHook.php

For more information about attaching hooks, see Manual:Hooks .
For examples of extensions using this hook, see Category:NormalizeMessageKey extensions.

Details

• &$key: (string) The message going to be displayed. Change this to display a different message in its place
• &$useDB: (bool) Whether to query the database to get the message
• &$langCode: (string or bool) If a string, the language code that should be used to get the message, if bool true, uses the content language, if bool false, uses the site's default language
• &$transform: (bool) Whether to expand templates and variables in the message

See also

• MessageCache::get hook
• MessagesPreLoad hook