* If not set, wfGetDB() will be used.
* This function has the same parameters as wfGetDB()
*
- * @param integer $db DB index (DB_REPLICA/DB_MASTER)
+ * @param int $db DB index (DB_REPLICA/DB_MASTER)
* @param array $groups; default: empty array
* @param string|bool $wiki; default: current wiki
* @return IMaintainableDatabase