public function newUser($user, $pass, $email = '', $fname = '', $sname = '' , $admin = False){
        $hash = password_hash($pass, PASSWORD_BCRYPT);
        return $this->db->insert($this->prefix.'users', ['user' => $user, 'pass' => $hash, 'admin' => $admin, 'email' => $email, 'first_name' => $fname, 'surname' => $sname]) ? $this->db->id() : False;
    }