&reftitle.constants; &extension.constants; YAF_VERSION (string) YAF_ENVIRON (string) YAF_ERR_STARTUP_FAILED (integer) YAF_ERR_ROUTE_FAILED (integer) YAF_ERR_DISPATCH_FAILED (integer) YAF_ERR_AUTOLOAD_FAILED (integer) YAF_ERR_NOTFOUND_MODULE (integer) YAF_ERR_NOTFOUND_CONTROLLER (integer) YAF_ERR_NOTFOUND_ACTION (integer) YAF_ERR_NOTFOUND_VIEW (integer) YAF_ERR_CALL_FAILED (integer) YAF_ERR_TYPE_ERROR (integer)