It seems I successfully create an on-the-fly zip archive (filesize and file_exists both return the expected values) but when I attempt to actually download it, I receive an empty ZIP file. Curiously enough this error occurs with both readfile and fread. This is my code
$filename = $zip;
$handle = fopen($filename, 'r');
if ($handle === false)
{
die('Could not read file "' . $filename . '"');
}
header('Content-type: application/zip');
header('Content-Disposition: attachment; filename="fsdownload.zip"');
header('Cache-Control: private');
while (!feof($handle))
{
echo fread($handle, 8192);
}
fclose($handle);
This works fine for zip-Files < 10 MB. Any thoughts on what the problem might be?