pmogitee gde oshibka?

if ($_GET['down']){


$dfile = $_GET['down'];

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://sayt.uz/".$dfile);
/*
curl_setopt($ch, CURLOPT_HEADER, 1);

curl_setopt($ch, CURLOPT_FAILONERROR, 1);
*/
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt ($ch, CURLOPT_REFERER, "http://sayt.uz/".$dfile);

// curl_setopt ($ch, CURLOPT_AUTOREFERER, 1);

$result = curl_exec($ch);

curl_close($ch);

if ($result)

{
//$gfile = 'site_ru_'.$dfile;

header('Content-Type: video/mp4');

header('Content-Disposition: attachment; filename=' . $dfile);

header('Content-Length: ' . strlen($result));



echo $result;

exit();

}


}else{