●このhtml(PHP)、iPhoneだとDownloadにならずにjpegが表示されてしまう！

view plainprint?

1. header( "Content-Type: application/octet-stream");  
2. header( "Content-Disposition: attachment; filename={$filename}.jpg");  
3. @readfile($jpegfile);  

header( "Content-Type: application/octet-stream");
header( "Content-Disposition: attachment; filename={$filename}.jpg");
@readfile($jpegfile);