&$user: the user that deleted the article
$reason: the reason the article was deleted
$id: id of the article that was deleted
-$content: the Content of the deleted page
+$content: the Content of the deleted page (or null, when deleting a broken page)
$logEntry: the ManualLogEntry used to record the deletion
$archivedRevisionCount: the number of revisions archived during the deletion
$output: ParserOutput that is produced from the page
$engine: SearchEngine for which the indexing is intended
+'SearchResultsAugment': Allows extension to add its code to the list of search
+result augmentors.
+&$setAugmentors: List of whole-set augmentor objects, must implement ResultSetAugmentor
+&$rowAugmentors: List of per-row augmentor objects, must implement ResultAugmentor.
+Note that lists should be in the format name => object and the names in both lists should
+be distinct.
+
'SecondaryDataUpdates': Allows modification of the list of DataUpdates to
perform when page content is modified. Currently called by
AbstractContent::getSecondaryDataUpdates.
$userText: User name of the current user
&$items: Array of user tool links as HTML fragments
+'UsersPagerDoBatchLookups': Called in UsersPager::doBatchLookups() to give
+extensions providing user group data from an alternate source a chance to add
+their data into the cache array so that things like global user groups are
+displayed correctly in Special:ListUsers.
+$dbr: Read-only database handle
+$userIds: Array of user IDs whose groups we should look up
+&$cache: Array of user ID -> internal user group name (e.g. 'sysop') mappings
+&$groups: Array of group name -> bool true mappings for members of a given user
+group
+
'ValidateExtendedMetadataCache': Called to validate the cached metadata in
FormatMetadata::getExtendedMeta (return false means cache will be
invalidated and GetExtendedMetadata hook called again).
specific to a content model should be provided by the respective Content's
getDeletionUpdates() method.
$page: the WikiPage
-$content: the Content to generate updates for
+$content: the Content to generate updates for (or null, if the Content could not be loaded
+due to an error)
&$updates: the array of DataUpdate objects. Hook function may want to add to it.
'XmlDumpWriterOpenPage': Called at the end of XmlDumpWriter::openPage, to allow