Trouble parsing XML response from curl_exec

Question

I am submitting the contents of an HTML form to a 3rd-party service using cURL, and it shoots me back an XML response. But no matter what I'm doing I can't seem to parse that XML response to customize the display of the results.

Here is the code for processing the form (note a few ID numbers have been censored):

<?php
 $FirstName = $_POST['FirstName'] ;
 $LastName = $_POST['LastName'] ;
 $Zip = $_POST['Zip'] ;
 $EmailAddress = $_POST['EmailAddress'] ;
 $PrimaryPhoneNumber = $_POST['PrimaryPhoneNumber'] ;
 $DateofBirth = $_POST['DateofBirth'] ;



$myvars = '&VID=' . '****' . '&LID=' . '****' . '&AID=' . '****' . '&FirstName=' . $FirstName . '&LastName=' . $LastName .
       '&EmailAddress=' . $EmailAddress . '&PrimaryPhoneNumber=' . $PrimaryPhoneNumber . '&Zip=' . $Zip . '&DateofBirth=' . $DateofBirth;


if ($FirstName!='' && $LastName!='' && $Zip!='' && $EmailAddress!='' && $PrimaryPhoneNumber!='' && $DateofBirth!='') {
    $c = curl_init();
    curl_setopt($c, CURLOPT_URL, 'http://secure.leadexec.net/leadimport.asmx/LeadReceiver');
    curl_setopt($c, CURLOPT_POST, true);
    curl_setopt($c, CURLOPT_POSTFIELDS, $myvars);
    curl_exec ($c);
    curl_close ($c);

} else {
    echo '<p>Please make sure you have filled out the form completely</p>';
}
?>

This is the raw output of the response I get back:

<?xml version="1.0" encoding="utf-8"?>
<PostResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.leadproweb.com/">
  <isValidPost>false</isValidPost>
  <ResponseType>Duplicate_Lead</ResponseType>
  <ResponseDetails>Duplicate Lead, Last Received On: 9/27/2013 2:17:26 PM</ResponseDetails>
  <LeadIdentifier>20889333</LeadIdentifier>
  <VendorAccountAssigned>0</VendorAccountAssigned>
  <PendingQCReview>false</PendingQCReview>
  <Price>0</Price>
  <RedirectURL />
</PostResponse>

When I try using methods like SimpleXmlElement or simplexml_load_string() to parse the XML, they seem to be ignored and I can't get rid of the raw XML output unless I remove the curl_exec($c) line.

Is there something I am doing wrong?

Have you tried assigning the output: $response = curl_exec( $c );? How were you planning to parse it? — Floris
– Floris, Commented Sep 27, 2013 at 21:31
Yes, I've tried doing exactly that, and then doing print_r ($response); but it gives me no result. — Evster
– Evster, Commented Sep 27, 2013 at 21:32
@Evster Take a look at the page's source code (right-click in your browser, choose "View source code")! — ComFreek
– ComFreek, Commented Sep 27, 2013 at 21:37
OK so print_r ($response); actually gives me a value of 1 when I view the source code. Calling var_dump($response); gives me bool(true) in the source code. But I should note that the source code is still spitting out all of the unwanted XML before displaying this data as noted in my original post. — Evster
– Evster, Commented Sep 27, 2013 at 21:45

Floris · Accepted Answer · 2013-10-02 17:17:55Z

2

You need to add

curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

to get the value (string) of the response; otherwise, curl_exec just returns a boolean (success/failure). See http://php.net/manual/en/function.curl-exec.php

Then you replace the line

curl_exec( $c );

with

$response = curl_exec( $c );

And finally you parse the response string with a parser of your choice.

edited Oct 2, 2013 at 17:17

answered Sep 27, 2013 at 21:50

Floris

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4 Comments

Evster Over a year ago

Thanks this appears to be the solution I was looking for!

Evster Over a year ago

I should also note that I need to eliminate the direct call to curl_exec( $c ); and instead assign it to a variable, otherwise I problems with duplicate results.

Evster Over a year ago

Sorry for any confusion Floris. You are correct. What I meant was that I needed to replace the call to curl_exec($c); with $response = curl_exec($c);. If I left both calls in my code it wouldn't work.

Floris Over a year ago

I have edited my answer to make the point unambiguous. We can now delete these comments...

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