Php - Google finance convert currency

function get_currency($from_Currency, $to_Currency, $amount) {
  $amount = urlencode($amount);
  $from_Currency = urlencode($from_Currency);
  $to_Currency = urlencode($to_Currency);

  $url = "http://finance.google.com/finance/converter?a=$amount&from=$from_Currency&to=$to_Currency";

  $ch = curl_init();
  $timeout = 0;
  curl_setopt ($ch, CURLOPT_URL, $url);
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

  curl_setopt ($ch, CURLOPT_USERAGENT,
   "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");
  curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
  $rawdata = curl_exec($ch);
  curl_close($ch);
  $data = explode('bld>', $rawdata);
  $data = explode($to_Currency, $data[1]);
  return round($data[0], 2);


}