public function check_user_login($user_data) { $username = $user_data['username']; $password = $user_data['password']; $builder = new SQLBuilder(); $sql = mysqli_query($this->db, $builder->check_user_login($username, md5($password))); if ($sql && mysqli_num_rows($sql) != 0) { $result = mysqli_fetch_array($sql, MYSQL_ASSOC); return $result; } }