Question

I’m trying to download multiple files using header() in a while loop, but only one file gets downloaded. Why?

while ($row = mysql_fetch_array($sql)) {
    header('Content-Type: text/x-vcard');
    header('Content-Disposition: attachment; filename=' . $row['name'] . '.vcf');
}

Answer 1

You can only transfer one file from server side at a time. Typical workarounds are:

1. tar/zip them up into one file on server side.
2. use javascript to window.open multiple files for download.