Debuggen von SOAP-Fehlermeldungen unter php5.5.12

{
    "respcode": 202,
    "respmsg": "looks like we got no XML document",
    "data": ""
}

function __construct()
    {
        parent::__construct();
        $this->load->model('baogaolist');
        $this->server = new SoapServer(null, ['uri' => '']);
    }

    function checkreport()
    {
        $this->load->model('baogaolist');
        $this->server->setObject($this->baogaolist);
        $this->server->handle();
    }

$url = $this->config->item('car_battery_check_url');

        //获取信息地址
        try {
            $a = new SoapClient(null, [
                'location' => $url . '/report/checkreport',
                'uri' => ''
            ]);

            $detail = $a->get_detail($this->storeid, $check_id);

        } catch (SoapFault $e) {
            resp_msg(202,$e->getMessage());
        }

function __construct()
    {
        parent::__construct();
        $this->load->model('baogaolist');
        $this->server = new SoapServer(null, ['uri' => 'http://172.16.4.29:8000/index.php/report/checkreport']);
    }

try {
            $a = new SoapClient(null, [
                'location' => $url . '/report/checkreport',
                'uri' => 'http://172.16.4.29:8000/index.php/report/checkreport'
            ]);

            $detail = $a->get_detail($this->storeid, $check_id);

        } catch (SoapFault $e) {
            resp_msg(202,$e->getMessage());
        }