Make the user download a file already online
===

If I do

    $file='http://notmywebsite.com/verybigimage.png';
    $newfile='test.png';
    copy($file,$newfile);

will my server download `http://notmywebsite.com/verybigimage.png`?

If yes, how can I make my user download `http://notmywebsite.com/verybigimage.png` without that my server download it?