Downloading a file in multiple threads with resume?

Question

PHP

How would one implement something like this? Give advice (code, example, link)

Answer 1

If apache has mod_xsendfile installed , don't bother, use it:

header('X-SendFile: ' . realpath($file));
header("Content-Type: $ctype");
header("Content-Disposition: attachment; filename=\"".basename($file)."\";" );