Using simplexml to parse curl response - php

Question

I'm using simplexml to parse a curl response. I am correctly getting the response but having trouble getting certain attributes from the response...
//Sending my data to web service
$curl = curl_init();
curl_setopt_array($curl, Array(
CURLOPT_URL => 'https://webservice.tld',
CURLOPT_POST => count($xml->asXML()),
CURLOPT_POSTFIELDS => $xml->asXML(),
CURLOPT_TIMEOUT => 120,
CURLOPT_CONNECTTIMEOUT => 30,
CURLOPT_RETURNTRANSFER => TRUE,
CURLOPT_ENCODING => 'UTF-8'
));
//Get the response
$reply = curl_exec($curl);
$responseData = simplexml_load_string($reply);
//Print the response
print_r($responseData);
This then correctly shows the xml response as:
<?xml version="1.0" encoding="utf-16"?>
<cXML payloadID="test" xml:lang="en" timestamp="2017-09-13T09:49:58.1219095+01:00">
<Response>
<Status code="500" text="Price does not match current pricelist" />
</Response>
</cXML>
However, i'm then trying to get just the code and text attributes from the Status but it's not outputting anything;
echo $responseData->Response->Status['code'] .' - '. $responseData->Response->Status['text'];
I have also tried;
echo $responseData->cXML->Response->Status['code'] .' - '. $responseData->cXML->Response->Status['text'];
Wondering if anyone can help?
Thanks.

Answer 1

You can do like this.
foreach($responseData->Response->Status->attributes() as $key => $val){
echo $key .'='. $val;
}
That is what on php documentation which you can read it here

Answer 2

The problem your getting (and this is why setting error messages for debugging) is...
<?php
error_reporting ( E_ALL );
ini_set ( 'display_errors', 1 );
$reply = <<< XML
<?xml version="1.0" encoding="utf-16"?>
<cXML payloadID="test" xml:lang="en" timestamp="2017-09-13T09:49:58.1219095+01:00">
<Response>
<Status code="500" text="Price does not match current pricelist" />
</Response>
</cXML>
XML;
$responseData = simplexml_load_string($reply);
gives...
Warning: simplexml_load_string(): Entity: line 1: parser error : Document labelled UTF-16 but has UTF-8 content in /home/nigel/workspace/PHPTest/TestSource/t1.php on line 15
If you change the utf-16 to utf-8, then this will parse OK and your original code should work.
<?php
error_reporting ( E_ALL );
ini_set ( 'display_errors', 1 );
$reply = <<< XML
<?xml version="1.0" encoding="utf-16"?>
<cXML payloadID="test" xml:lang="en" timestamp="2017-09-13T09:49:58.1219095+01:00">
<Response>
<Status code="500" text="Price does not match current pricelist" />
</Response>
</cXML>
XML;
$reply = preg_replace('/(<\?xml[^?]+?)utf-16/i', '$1utf-8', $reply);
$responseData = simplexml_load_string($reply);
//Print the response
echo $responseData->Response->Status['code'];
It would be ideal if whoever is generating the XML fixes this, but for now this will help solve the problem.