private static function init() { if (!self::$initDone) { global $mysqlConfig; self::$mysqlConfigMaxPacketSize = $mysqlConfig['max_allowed_packet']; self::$mysqli = new mysqli($mysqlConfig['host'], $mysqlConfig['username'], $mysqlConfig['password'], $mysqlConfig['schema']); self::$mysqli->set_charset('utf8'); self::$initDone = true; userManager::task_checkForExistingSession(); } }