roundcubemail/program/include/rcmail.php
public function login_error()
    {
        if ($this->login_error) {
            return $this->login_error;
        }

        if ($this->storage && $this->storage->get_error_code() < -1) {
            return self::ERROR_STORAGE;
        }
    }
public function login_error()
    {
        if ($this->login_error) {
            return $this->login_error;
        }

        if ($this->storage && $this->storage->get_error_code() < -1) {
            return self::ERROR_STORAGE;
        }
    }
public function login_error ( ) { if ( $ this -> login_error ) { return $ this -> login_error ; } if ( $ this -> storage && $ this -> storage -> get_error_code ( ) < - 1 ) { return self :: ERROR_STORAGE ; } }
Returns error code of last login operation

@return int Error code
Returns error code of last login operation