$filename = "1.jpg";
$myFile = "upload/1.jpg";
*
$mm_type="application/octet-stream";
*
header("Cache-Control: public, must-revalidate");
header("Pragma: hack"); // WTF? oh well, it works...
header("Content-Type: " . $mm_type);
header("Content-Length: " .(filesize($myFile)) );
header('Content-Disposition: attachment; filename="'.$filename.'"');
header("Content-Transfer-Encoding: binary\n");
*
readfile($myFile);