Resumable downloads when using PHP to send the file?

Question

We are using a PHP scripting for tunnelling file downloads, since we don\'t want to expose the absolute path of downloadable file:

header(\"Content-Type: $ct         


        

Answer 1

Resuming downloads in HTTP is done through the Range header. If the request contains a Range header, and if other indicators (e.g. If-Match, If-Unmodified-Since) indicate that the content hasn't changed since the download was started, you give a 206 response code (rather than 200), indicate the range of bytes you're returning in the Content-Range header, then provide that range in the response body.

I don't know how to do that in PHP, though.