proxy.php

<?php
  header('Content-type: text/javascript');

  // Extract form action and assign to variable
  $action = $_POST['action'];

  // Assign form array to single variable
  $arr = $_POST;

  // Remove "action" key from array
  unset($arr['action']);

  // Loop through and add keys and values to a single variable
  $formVars = "";
  foreach ($arr as $key => $value) {
    if (is_array($value)) {
      foreach ($value as $subvalue) {
        $formVars .= $key."=".urlencode($subvalue)."&";
      }
    } else {
      $formVars .= $key."=".urlencode($value)."&";
    }
  }

  // Remove last "&"
  $formVars = substr($formVars,0,-1);

  // Get the response
  $handle = curl_init($action);

  // If there is something, read and return
  curl_setopt($handle, CURLOPT_POST, true);
  curl_setopt($handle, CURLOPT_POSTFIELDS, $formVars);
  curl_setopt ($handle, CURLOPT_FOLLOWLOCATION, 1);
  echo curl_exec($handle);
  curl_close($handle);
?>