I am trying to download a zip file from my localhost.The file is downloading but gives an error message "invalid" when I open it. I am using the following code:-
$filename = "markers.zip";
`if(file_exists($filename) && is_readable($filename)){
header("Content-Disposition: attachment; filename=".basename($filename));
header("Content-Type: application/force-download");
header("Content-Type: application/zip");
header("Content-Description: File Transfer");
header("Content-Length: " . filesize($filename));
flush();
$fp = fopen($filename, "r");
while (!feof($fp))
{
echo fread($fp, 65536);
flush();
}
fclose($fp);
exit;
}`