How to read xml node levels value? - php

Question

I am trying call SOAP API request using CURL and here is my code:
$wsdl = "http://xxxxx//xxxxx//xxxxx";
$body = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:par="http:///xxxxx.com">
<soapenv:Header/>
<soapenv:Body>
<par:createReservationReq>
<par:garageID>47</par:garageID>
<par:orderNumber>orderNumber'.$id.'</par:orderNumber>
<!--1 or more repetitions:-->
<par:vehicles>
<par:barCode>barCode'.$id.'</par:barCode>
<!--Optional:-->
<par:licensePlate>licensePlate'.$id.'</par:licensePlate>
<par:startTime>2015-11-20T22:53:45.547</par:startTime>
<par:endTime>2015-11-21T22:53:45.547</par:endTime>
<!--Optional:-->
<par:vehicleMake>vehicleMake'.$id.'</par:vehicleMake>
<!--Optional:-->
<par:vehicleModel>vehicleMode'.$id.'</par:vehicleModel>
<!--Optional:-->
<par:vehicleColor>vehicleColor'.$id.'</par:vehicleColor>
</par:vehicles>
<!--Optional:-->
<par:grossPrice>152.6</par:grossPrice>
<!--Optional:-->
<par:commFee>162.6</par:commFee>
<!--Optional:-->
<par:customerName>customerName'.$id.'</par:customerName>
<!--Optional:-->
<par:customerEmail>customerEmail'.$id.'</par:customerEmail>
<!--Optional:-->
<par:customerPhone>customerPhone'.$id.'</par:customerPhone>
<!--Optional:-->
<par:reentryAllowed>true</par:reentryAllowed>
</par:createReservationReq>
</soapenv:Body>
</soapenv:Envelope>';
// initializing cURL with the IPG API URL:
$ch = curl_init($wsdl);
// setting the request type to POST:
curl_setopt($ch, CURLOPT_POST, 1);
// setting the content type:
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: text/xml"));
// setting the authorization method to BASIC:
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
// filling the request body with your SOAP message:
curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
// telling cURL to verify the server certificate:
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
// telling cURL to return the HTTP response body as operation result
// value when calling curl_exec:
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// calling cURL and saving the SOAP response message in a variable which
// contains a string like "<SOAP-ENV:Envelope ...>...</SOAP-ENV:Envelope>":
$result = curl_exec($ch);
// loads the XML
$xml = simplexml_load_string($result);
Now I don't understand how to read value from xml response. I am adding my response data here so you can get proper idea:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header/>
<soapenv:Body xmlns:s="http://www.w3.org/2003/05/soap-envelope">
<tns:createReservationResp xmlns:tns="http://xxxxx.com">
<tns:success>true</tns:success>
<tns:message>Test Garage order orderNumber168. created 2015-11-19 00:30:57.905</tns:message>
<tns:orderTime>2015-11-19 00:30:57.905</tns:orderTime>
<tns:reservations>
<tns:garageID>47</tns:garageID>
<tns:barCode>barCode168</tns:barCode>
<tns:licensePlate>licensePlate168</tns:licensePlate>
<tns:orderNumber>orderNumber168</tns:orderNumber>
<tns:used>false</tns:used>
<tns:cancelled>false</tns:cancelled>
<tns:startTime>2015-11-20 22:53:45.547</tns:startTime>
<tns:endTime>2015-11-21 22:53:45.547</tns:endTime>
<tns:cancelledTime/>
<tns:checkInTime/>
<tns:checkOutTime/>
<tns:grossPrice>152.6</tns:grossPrice>
<tns:commFee>162.6</tns:commFee>
<tns:customerName>customerName168</tns:customerName>
<tns:customerEmail>customerEmail168</tns:customerEmail>
<tns:customerPhone>customerPhone168</tns:customerPhone>
<tns:vehicleMake>vehicleMake168</tns:vehicleMake>
<tns:vehicleModel>vehicleModel68</tns:vehicleModel>
<tns:vehicleColor>vehicleColor168</tns:vehicleColor>
<tns:reentryAllowed>true</tns:reentryAllowed>
</tns:reservations>
</tns:createReservationResp>
</soapenv:Body>
</soapenv:Envelope>
I want to read this value from response:
<tns:success>true</tns:success>
<tns:message>Test Garage order orderNumber168. created 2015-11-19 00:30:57.905</tns:message>
<tns:orderTime>2015-11-19 00:30:57.905</tns:orderTime>
<tns:garageID>47</tns:garageID>
<tns:barCode>barCode168</tns:barCode>
Any Idea?
Thanks.

Answer 1

In general you should use SoapClient when dealing with SOAP instead of curl. It provides much cleaner interface. In your case one needs to work with SimpleXML functions, a good tutorial is on the SitePoint.
$soapenv = $xml->children("http://schemas.xmlsoap.org/soap/envelope/");
$tns = $soapenv->Body->children("http://xxxxx.com");
echo "success: " . $tns->createReservationResp->success . "\n";
echo "message: " . $tns->createReservationResp->message . "\n";
echo "orderTime: " . $tns->createReservationResp->orderTime . "\n";
echo "garageID: " . $tns->createReservationResp->reservations->garageID . "\n";
echo "barCode: " . $tns->createReservationResp->reservations->barCode . "\n";