$rc: RecentChange being tagged when the tagging accompanies the action or null
$user: User who performed the tagging when the tagging is subsequent to the action or null
+'ChangeTagsAllowedAdd': Called when checking if a user can add tags to a change.
+&$allowedTags: List of all the tags the user is allowed to add. Any tags the
+ user wants to add ($addTags) that are not in this array will cause it to fail.
+ You may add or remove tags to this array as required.
+$addTags: List of tags user intends to add.
+$user: User who is adding the tags.
+
'ChangeUserGroups': Called before user groups are changed.
$performer: The User who will perform the change
$user: The User whose groups will be changed
'EditPageBeforeEditToolbar': Allows modifying the edit toolbar above the
textarea in the edit form.
-&$toolbar: The toolbar HTMl
+&$toolbar: The toolbar HTML
+Hook subscribers can return false to avoid the default toolbar code being loaded.
'EditPageCopyrightWarning': Allow for site and per-namespace customization of
contribution/copyright notice.
$title: the Title of the rendered page.
$parserOutput: ParserOutput resulting from rendering the page.
+'OtherAutoblockLogLink': Get links to the autoblock log from extensions which
+autoblocks users and/or IP addresses too.
+&$otherBlockLink: An array with links to other autoblock logs
+
'OtherBlockLogLink': Get links to the block log from extensions which blocks
users and/or IP addresses too.
&$otherBlockLink: An array with links to other block logs