Available from version 1.25.0 (Gerrit change 161471)
Customize parser output for a given content object, called by ContentHandler::getParserOutput.
Define function:
public static function onContentAlterParserOutput( Content $content, Title $title, ParserOutput &$output ) { ... }
Attach hook: In extension.json:
	"Hooks": {
		"ContentAlterParserOutput": "MediaWiki\\Extension\\MyExtension\\Hooks::onContentAlterParserOutput"
Called from: File(s): content/ContentHandler.php
Function(s): getParserOutput
Interface: ContentAlterParserOutputHook.php

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

Details edit

Modifies the parser output for a given content object. Since MW 1.39, called by ContentHandler::getParserOutput after parsing has finished. Can be used for changes that depend on the result of the parsing but have to be done before LinksUpdate is called (such as adding tracking categories based on the rendered HTML).

The Content to render
Title of the page, as context
ParserOutput to manipulate

See also edit