php zipfile returning an empty zip file

Question

<?php

$files = array('1.txt', '2.txt', '3.txt');
$zipname = 'test.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
foreach ($files as $file) {
  $zip->addFile($file);
}
$zip->close();

header('Content-Type: application/zip');
header('Content-disposition: attachment; filename='.$zipname);
header('Content-Length: ' . filesize($zipname));
readfile($zipname);

?>

this is my code, the only issue is it is not downloading the files i have specified.

am i doing something wrong? is it the browser im using? (opera)

the file downloads but it ends up being empty.

Answer 1

First check zip file is creating or not and then,

Add File transfer header...

        header('Content-Description: File Transfer');
        header('Content-Type: application/zip');
        header('Content-Disposition: attachment; filename="' . $fileName . '"');
        header('Content-Transfer-Encoding: binary');
        header('Connection: Keep-Alive');
        header('Expires: 0');
        header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
        header('Pragma: public');
        header('Content-Length: ' ."Your file size" );            
        set_time_limit(0);

It will work.

Append "Your file size" to the length of the file size.