Available from version 1.19.0 (r95775, codereview)
Provide custom ordering for namespaces or remove namespaces.
Define function:
public static function onLanguageGetNamespaces( &$namespaces ) { ... }
Attach hook: In extension.json:
	"Hooks": {
		"LanguageGetNamespaces": "MediaWiki\\Extension\\MyExtension\\Hooks::onLanguageGetNamespaces"
Called from: File(s): ../languages/Language.php
Interface: LanguageGetNamespacesHook.php

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

Warning Warning: Do not use this hook to add namespaces. Use CanonicalNamespaces for that.

Details edit

  • &$namespaces: Array of namespaces indexed by their numbers