passed in as a query string parameter to the various URLs constructed here(i.e. $prevlink) $ldel you ll need to handle error etc yourself modifying $error and returning true will cause the contents of $error to be echoed at the top of the edit form as wikitext Return true without altering $error to allow the edit to proceed & $editor
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that probably a stub it is not rendered in wiki pages or galleries in category pages allow injecting custom HTML after the section Any uses of the hook need to handle escaping see BaseTemplate::getToolbox and BaseTemplate::makeListItem for details on the format of individual items inside of this array or by returning and letting standard HTTP rendering take place modifiable or by returning false and taking over the output $out