Available from version 1.17.0
Called when OutputPage::headElement() is creating the body tag.
Define function:
public static function onOutputPageBodyAttributes( OutputPage $out, Skin $skin, &$bodyAttrs ) { ... }
Attach hook: In extension.json:
	"Hooks": {
		"OutputPageBodyAttributes": "MediaWiki\\Extension\\MyExtension\\Hooks::onOutputPageBodyAttributes"
Called from: File(s): Output/OutputPage.php
Interface: OutputPageBodyAttributesHook.php

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

Details edit

Allows extensions to add attributes to the body of the page they might need. Or to allow building extensions to add body classes that aren't of high enough demand to be included in core.

  • $out: The OutputPage which called the hook, can be used to get the real title
  • $skin: The Skin that called OutputPage::headElement
  • &$bodyAttrs: An array of attributes for the body tag passed to Html::openElement