插入函数中的mysqli类joshcam错误

Question

我正在使用joshcam/PHP-MySQLi-Database-Class库，当我尝试使用数组插入数据时，我在插入函数中出错 错误信息： 致命错误：在第548行的../MysqliDb.php中调用未定义的方法SimpleXMLElement :: getSubQuery（）。 有人会告诉我如何解决它吗？

我的代码在这里

 $db->where("project_id", $data_project['project_id']);
                   $tmp = $db->getOne("projects");
               if(count($tmp))
                    {
                        $data = array(  "project_name" => $data_project['project_name'],
                                        "project_url" => $data_project['project_url'],
                                        "project_details" => $data_project['project_details']
                        );
                        $db->where('project_id', $data_project['project_id']);
                        $id = $db->update('projects',$data);
                    }
                    else
                    {
                        $data = array("project_id" => $data_project['project_id'],
                                        "user_id" => 1,
                                        "project_name" => $data_project['project_name'],
                                        "project_url" => $data_project['project_url'],`enter code here`
                                        "project_details" => $data_project['project_details']
                        );
                        $id = $db->insert('projects',$data);