strpos and XML

[sKunKbad]

I'm trying to check for an error message within some XML that is returned from cURL, but strstr and strpos aren't working for me:

 

<?php
$response ="<?xml version='1.0' encoding='UTF8'?><error xmlns='http://incubator.apache.org/abdera'><code>409</code><message>Email address (someemailaddress.com) is already a contact</message></error>1";
// Check for error
  if (strpos($response, "<?xml version='1.0' encoding='UTF8'?><error")) {
      echo "The subscription process failed - try again.<br />";
  }
  echo $response; // echo response, it may contain an error message
?>

 

What's wrong here? Instead of strstr or strpos seeing my needle in the haystack, I just see the haystack output.

[thebadbad]

The needle is found at position 0, evaluating to false. That's why you always use strict comparison when checking the return of strpos().

 

if (strpos($response, "<?xml version='1.0' encoding='UTF8'?><error") !== false)

[sKunKbad]

Well, I figured that out, but the problem is that the real haystack is XML being brought in from cURL, and it just isn't acting the same as when the haystack is in the code as I showed. I think it has more to do with cURL than strpos.