Parse XML response from PHP CURL - php

Question

I am trying to use an API that returns the following structure
<TwilioResponse>
<Call>
<Sid>CAe1644a7eed5088b159577c5802d8be38</Sid>
<DateCreated>Tue, 10 Aug 2010 08:02:17 +0000</DateCreated>
<DateUpdated>Tue, 10 Aug 2010 08:02:47 +0000</DateUpdated>
<ParentCallSid/>
<AccountSid>AC5ef872f6da5a21de157d80997a64bd33</AccountSid>
<To>[phone]</To>
<From>[phone]</From>
<PhoneNumberSid></PhoneNumberSid>
<Status>completed</Status>
<StartTime>Tue, 10 Aug 2010 08:02:31 +0000</StartTime>
<EndTime>Tue, 10 Aug 2010 08:02:47 +0000</EndTime>
<Duration>16</Duration>
<Price>-0.03000</Price>
<Direction>outbound-api</Direction>
</Call>
</TwilioResponse>
I can get to the XML data by using CURL which works fine like this:
$handle = curl_init();
curl_setopt($handle, CURLOPT_URL, $base_url."/Accounts/{$accountSid}/Calls");
curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($handle);
curl_close($handle);
however once I get the data back as XML I try and put it into a simpleXML element and return it back to the page that called this function as follows:
$xml = new SimpleXmlElement($response);
if($xml)
{
return $xml;
}
else
{
return false;
}
When I return the XML to the page that called the function, I can see a whole lot of simpleXMLElement Objects if I do a print_r() but when I try and do a foreach($xml->TwilioResponse->call as $call) I get nothing and it does not seem like I can actually drill into the data at all.
Can someone help me and point out where I am going wrong with this? It has been driving me absolutely crazy for the past couple of hours.
THANKS!

Answer 1

It looks like there are two problems with $xml->TwilioResponse->call.
$xml contains the TwilioResponse element (the "document element"), $xml->TwilioResponse is incorrect.
(XML and) SimpleXML element names are case-sensitive, call should be Call.
Give $xml->Call a spin.