Why is Wufoo PHP API not working?

Question

UPDATE: I've found that this issue is related to my hosting setup somehow. The code is hosted on a DV server by Media Temple, however I placed the exact same code on a GS Media Temple server and it worked as expected. So any ideas as to what could be different between the two?

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Wondering if anyone can shed some light on why I can't get this API call to work. Just trying to get form entry data. If I paste the URL to the JSON into my browser, it displays as you'd expect but in this call I can't get any server response.

<?php


$api_uri_1 = "https://eastbankads.wufoo.com/api/v3/forms/z1qh9i4b1qg5qa6/entries.json";

function wufoo_api($api_uri) {
  $curl = curl_init($api_uri);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($curl, CURLOPT_USERPWD, 'MY-API-KEY:password');
  curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
  curl_setopt($curl, CURLOPT_USERAGENT, 'Wufoo Sample Code');
  $response = curl_exec($curl);
  $resultStatus = curl_getinfo($curl);

  if ($resultStatus['http_code'] == 200) {
    $results = json_decode($response, true);
    return $results;
  } else {
    $results = 'Call Failed '.print_r($resultStatus);
    return $results;
  }
}

$result1 = wufoo_api($api_uri_1);

?>

I've checked & doubled checked my API key. Here's a link to my test page and the output that's given from the code:

http://resources.worldoftile.net/wufoo-perfect-project-entries/

Or, this is what is output on that page:

Array ( 
  [url] => https://eastbankads.wufoo.com/api/v3/forms/z1qh9i4b1qg5qa6/entries.json 
  [content_type] => 
  [http_code] => 0 
  [header_size] => 0 
  [request_size] => 132 
  [filetime] => -1 
  [ssl_verify_result] => 0 
  [redirect_count] => 0 
  [total_time] => 0.068676 
  [namelookup_time] => 2.2E-5 
  [connect_time] => 0.009197 
  [pretransfer_time] => 0 
  [size_upload] => 0 
  [size_download] => 0 
  [speed_download] => 0 
  [speed_upload] => 0 
  [download_content_length] => -1 
  [upload_content_length] => 0 
  [starttransfer_time] => 0 
  [redirect_time] => 0.068764 
  [certinfo] => Array ( ) 
  [primary_ip] => 75.98.93.66 
  [redirect_url] => 
)

Answer 1

Removing the below line will fix this issue.

curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);