I have a script that is designed to parse XML postbacks from Ultracart, right now just dumps it into a MySQL table. The script works fine if I point it to a XML file on my localhost but using 'php://input' it doesn't seem to grabbing anything. My logs show apache returning 200 after the post so I have no idea what could be wrong or how to drill down the issue.. here's the code:

  $doc = new DOMDocument();
  $doc->loadXML($page);

  $handle = fopen("test2/".time().".xml", "w+");
  fwrite($handle,trim($page)); // it doesn't save this either :'(
  fclose();

  require_once('includes/database.php');

  $db = new Database('localhost', 'user', 'password', 'db_name');
  $data = array();

   $exports = $doc->getElementsByTagName("export");
   foreach ($exports as $export) {
     $orders = $export->getElementsByTagName("order");
     foreach($orders as $order) {
        $data['order_id'] = $order->getElementsByTagName("order_id")->item(0)->nodeValue;
        $data['payment_status'] = $order->getElementsByTagName("payment_status")->item(0)->nodeValue;
        $date_array = explode(" ",$order->getElementsByTagName("payment_date_time")->item(0)->nodeValue);

            if ($date_array[1] == 'JAN') { $date_array[1] = '01'; }
            if ($date_array[1] == 'FEB') { $date_array[1] = '02'; }
            if ($date_array[1] == 'MAR') { $date_array[1] = '03'; }
            if ($date_array[1] == 'APR') { $date_array[1] = '04'; }
            if ($date_array[1] == 'MAY') { $date_array[1] = '05'; }        // converts Ultracart date to
            if ($date_array[1] == 'JUN') { $date_array[1] = '06'; }        // MySQL date
            if ($date_array[1] == 'JUL') { $date_array[1] = '07'; }
            if ($date_array[1] == 'AUG') { $date_array[1] = '08'; }
            if ($date_array[1] == 'SEP') { $date_array[1] = '09'; }
            if ($date_array[1] == 'OCT') { $date_array[1] = '10'; }
            if ($date_array[1] == 'NOV') { $date_array[1] = '11'; }
            if ($date_array[1] == 'DEC') { $date_array[1] = '12'; }

        $data['payment_date'] = $date_array[2]."-".$date_array[1]."-".$date_array[0];
        $data['payment_time'] = $date_array[3];

        //... we'll skip this, there are 80 some elements

        $data['discount'] = $order->getElementsByTagName("discount")->item(0)->nodeValue;
        $data['distribution_center_code'] = $order->getElementsByTagName("distribution_center_code")->item(0)->nodeValue;
            }
        }
    }
        $db->insert('order_history',$data);
} else die('ERROR: Token Check Failed!');