This code is really useful to download files (i.e. an mp3 file). It will tell the browser about the file type you’re about to download while also customizing the file name of it.

header('Content-type: audio/mpeg');
header('Content-Disposition: attachment; filename="'.$name.'.mp3"');
readfile($link);
 
// We just need to provide the $name and $link variables for it to work.