Available from version 1.28.0
Allows to provide custom content fields when indexing a document.
Define function:
public static function onSearchDataForIndex( array &$fields, ContentHandler $handler, WikiPage $page, ParserOutput $output, SearchEngine $engine ) { ... }
Attach hook: In extension.json:
	"Hooks": {
		"SearchDataForIndex": "MediaWiki\\Extension\\MyExtension\\Hooks::onSearchDataForIndex"
Called from: File(s): SearchEngine.php
Interface: SearchDataForIndexHook.php

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


  • array &$fields: Array of name => value pairs for fields
  • ContentHandler $handler: ContentHandler for the content being indexed
  • WikiPage $page: WikiPage that is being indexed
  • ParserOutput $output: ParserOutput that is produced from the page
  • SearchEngine $engine: SearchEngine for which the indexing is intended

Add data to search document. Allows an extension to add any data to the field map used to index the document.