params()->parseAsBlock() * - `offset`: Set to overwrite offset parameter in $wgRequest set to '' to unset * offset * - `wrap` (string): Wrap the message in html (usually something like * "<div ...>$1</div>") * - `flags` (integer): Display flags (NO_ACTION_LINK,NO_EXTRA_USER_LINKS) * @return bool|void True or no return value to continue, or false to prevent the * string from being added to the OutputPage */ public function onLogEventsListShowLogExtract( &$s, $types, $page, $user, $param ); }