Не отображается PHP код

<?php
// Не редактируйте содержимое, расположенное ниже этой строки.
// ---------------------------------------------------------------------------
$SVQuerystring = "";
foreach (($_GET) as $SVGetKey => $SVGetValue) {
  $SVQuerystring = $SVQuerystring.$SVGetKey."=".$SVGetValue."&";
}
$SVURL = "http://websyndication.sharedvue.net/Sharedvue/pull/";
$SVURL = $SVURL."?svhost=".$_SERVER["HTTP_HOST"];

if (!empty($_SERVER["PHP_SELF"])) {
  if ((isset($_SERVER['REDIRECT_URL'])) && (strpos($_SERVER['REDIRECT_URL'], $_SERVER['PHP_SELF']) === FALSE)) $SVURL = $SVURL . $_SERVER['REDIRECT_URL'];
  else $SVURL = $SVURL . $_SERVER['PHP_SELF'];
}
else if (!empty($_SERVER['SCRIPT_NAME'])) {
  if ((isset($_SERVER['REDIRECT_URL'])) && (strpos($_SERVER['REDIRECT_URL'], $_SERVER['SCRIPT_NAME']) === FALSE)) $SVURL = $SVURL . $_SERVER['REDIRECT_URL'];
  else $SVURL = $SVURL . $_SERVER['SCRIPT_NAME'];
}

if (strlen($SVQuerystring) > 0) {
  $SVURL = $SVURL.urlencode("?".$SVQuerystring);
}

if (function_exists('curl_init')) {
  $SVCurl = curl_init();
  curl_setopt($SVCurl, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($SVCurl, CURLOPT_URL, $SVURL);
  $SVContent = curl_exec($SVCurl);
  $SVHTTPStatusCode = curl_getinfo($SVCurl, CURLINFO_HTTP_CODE);
  curl_close($SVCurl);
}
else {
	$SVContent = file_get_contents($SVURL);
	list($SVHTTPVersion,$SVHTTPStatusCode,$SVHTTPMsg) = explode(' ',$http_response_header[0], 3);
}

switch($SVHTTPStatusCode) {
  case 200:
    echo ($SVContent);
    break;
  default:
    echo "<!-- SharedVue Output: Could not reach SharedVue server: $SVHTTPMsg ($SVHTTPStatusCode) -->";
    break;
}
// ---------------------------------------------------------------------------
?>

<iframe src="http://websyndication.sharedvue.net/sharedvue/iframe/?sviresizer=excalibur.su&svnoresize=1"
width="100%" height="2500" frameborder="0" marginheight="0" marginwidth="0" scrolling="auto" id="idSVIframe">
  <div style="font:10px sans-serif;color:#666666;">Sorry, your browser doesn't support iframes.</div>
</iframe>