PHP Download Script Creates Unreadable ZIP File on Mac

Question

For reference, I have already read and tried the answers in these and several other threads:

Creating and serving zipped files with php

Opening downloaded zi

Answer 1

Well, I presume you know that your $fsize variable is not being written to that header because it's enclosed by quotes. You could try something like this:

header('Cache-Control: public');
header('Content-Description: File Transfer');
header('Content-Disposition: attachment; filename=\"".$zipname."\"');
header('Content-Type: application/zip');