将xml数据发送到服务器，接收它并保存到php中的变量中

Question

我将 xml 数据发送到远程服务器（网站）。得到它的回应。 现在我想将接收到的值保存在变量中以供进一步使用。但我不能这样做。

这是完整的代码：

<?php
$xml = '<?xml version="1.0" encoding="UTF-8" ?> <Request> <Source> <RequestorID Client="1921" EMailAddress="XML.ALTECH@TRAVELDEN.COM" Password="PASS" /> 
<RequestorPreferences Language="en" Currency="GBP" Country="GB"> 
<RequestMode>SYNCHRONOUS</RequestMode> </RequestorPreferences> </Source> 
<RequestDetails> <SearchHotelPriceRequest> <ItemDestination DestinationType="city" DestinationCode="LON" /> 
<ImmediateConfirmationOnly /> <PeriodOfStay> <CheckInDate>2015-12-08</CheckInDate> <Duration>2</Duration> 
</PeriodOfStay> 
<IncludeRecommended/> <Rooms> 

<Room Code="DB" NumberOfRooms="1"> <ExtraBeds> <Age>5</Age> </ExtraBeds> </Room> 
<Room Code="TB" NumberOfCots="2"> <ExtraBeds> <Age>10</Age> </ExtraBeds> </Room> 
<Room Code="SB" /> </Rooms> <StarRating MinimumRating="true">3</StarRating> 

<OrderBy>pricelowtohigh</OrderBy> <NumberOfReturnedItems>10</NumberOfReturnedItems> </SearchHotelPriceRequest> </RequestDetails> </Request>
' ;
$url = 'https://interface.demo.gta-travel.com/wbsapi/RequestListenerServlet';
   //setting the curl parameters.
 $headers = array(
    "Content-type: text/xml;charset=\"utf-8\"",
    "Accept: text/xml",
    "Cache-Control: no-cache",
    "Pragma: no-cache",
    "SOAPAction: \"run\""
 );
        try{

            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_POST, 1);
            // send xml request to a server
            curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
            curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_POSTFIELDS,  $xml);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_VERBOSE, 0);
            curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
            echo $ch;
            $data = curl_exec($ch);

            echo $data;


            if($data === false){
                $error = curl_error($ch);
                echo $error; 
                die('error occured');
            }else{
                $newxml=$data;
                echo $data;
                echo '<pre>';
                echo htmlspecialchars(print_r($newxml, true));
                echo '<pre>';   
            $dataPOST = trim(file_get_contents($data));
            $xmlData = simplexml_load_string($dataPOST);                
            echo $xmlData->Response->ResponseDetails->SearchHotelPriceResponse->HotelDetails->Hotel['HasMap'];
            }
            curl_close($ch);
        }catch(Exception  $e){
            echo 'Message: ' .$e->getMessage();die("Error");
    }
?>

我收到的错误是“尝试获取非对象的属性”，并且还有类似 Warning: file_get_contents(

$dataPOST = trim(file_get_contents($data));
            $xmlData = simplexml_load_string($dataPOST);                
            echo $xmlData->Response->ResponseDetails->SearchHotelPriceResponse->HotelDetails->Hotel['HasMap'];

这是我在 xml 中从服务器接收的输出代码

<?xml version="1.0" encoding="UTF-8"?>
<Response ResponseReference="REF_D_010_1921-1001448826920884">
    <ResponseDetails Language="en">
        <SearchHotelPriceResponse>
            <HotelDetails>
                    <Hotel HasExtraInfo="true" HasMap="true" HasPictures="true">
                        <City Code="LON"><![CDATA[London]]></City>
                            <Item Code="KEN8"><![CDATA[Grosvenor Kensington]]></Item>
                                <LocationDetails><Location Code="G1"><![CDATA[Central]]></Location>


                                    <Location Code="10"><![CDATA[Kensington]]></Location></LocationDetails>
                                    <StarRating>4</StarRating>
                                    <HotelRooms>
                                        <HotelRoom Code="DB" ExtraBed="true" NumberOfExtraBeds="1" NumberOfRooms="1"/>
                                        <HotelRoom Code="TB" ExtraBed="true" NumberOfCots="2" NumberOfExtraBeds="1" NumberOfRooms="1"/>
                                        <HotelRoom Code="SB" NumberOfRooms="1"/>
                                    </HotelRooms>
                    <RoomCategories>
                        <RoomCategory Id="001:GRO9:5144:S5063:5758:22498">
                            <Description><![CDATA[Standard Triple]]></Description>
                            <ItemPrice CommissionPercentage="0.00" Currency="GBP">1272.00</ItemPrice>
                            <Confirmation Code="IM">
                            <![CDATA[AVAILABLE]]>
                            </Confirmation>

                            <SharingBedding>false</SharingBedding>
                            <Meals>
                            <Basis Code="N"><![CDATA[None]]></Basis></Meals>
                        </RoomCategory>

                    <RoomCategory Id="001:KEN8:5144:S5063:5705:22498">
                        <Description><![CDATA[Standard Triple]]></Description>
                        <ItemPrice CommissionPercentage="0.00" Currency="GBP">1413.00</ItemPrice>
                        <Confirmation Code="IM"><![CDATA[AVAILABLE]]></Confirmation>
                        <SharingBedding>false</SharingBedding>
                        <Meals><Basis Code="B"><![CDATA[Breakfast]]></Basis>
                        <Breakfast Code="F"><![CDATA[Full]]>
                        </Breakfast></Meals>
                    </RoomCategory>
                </RoomCategories></Hotel>
            </HotelDetails>
        </SearchHotelPriceResponse>
    </ResponseDetails>
</Response>

Answer 1

var_dump($xmlData) 将在您的代码中为“假”...

使用无效的file_get_contents()，当$data 是字符串时，您正在尝试“从磁盘加载”。

您还试图错误地获取属性。

找到此代码：

$dataPOST = trim(file_get_contents($data));
$xmlData = simplexml_load_string($dataPOST);                
echo $xmlData->Response->ResponseDetails->SearchHotelPriceResponse->HotelDetails->Hotel['HasMap'];

将其更改为以下代码：

$xmlData = simplexml_load_string($data);                
echo $xmlData->ResponseDetails->SearchHotelPriceResponse->HotelDetails->Hotel->attributes()->HasMap;