php page review

$SID=”8b8165f6-9e9c-4008-8b65-2e7a4a181652″;
$IPAddress = urlencode($_SERVER['REMOTE_ADDR']);
$UserAgent = urlencode($_SERVER['HTTP_USER_AGENT']);
$Host=urlencode($_SERVER['HTTP_HOST']);
$PageURL=urlencode($_SERVER['SCRIPT_NAME'].’?’.$_SERVER['QUERY_STRING']);
$URL=”http://si.goldencan.com/GetData.aspx?ver=2.0&SID=”.$SID;
$URL=$URL.’&Host=’.$Host;
$URL = $URL.’&PageURL=’.$PageURL;
$URL = $URL.’&IPAddress=’.$IPAddress;
$URL = $URL.’&UserAgent=’.$UserAgent;
$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $URL);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $output .= curl_exec($ch); curl_close($ch); echo($output);

$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $URL);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $output .= curl_exec($ch); curl_close($ch);
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