csvxml/zipit.php

<?PHP
require_once "inc/zip.php";

require_once __DIR__ . "/functions/functions.php";

$fileTime = date("D, d M Y H:i:s T");
$fileDir = 'xml/';

$zip = new Zip();
//$zip->setComment("Example Zip file.\nCreated on " . date('l jS \of F Y h:i:s A'));

if ($handle = opendir($fileDir)) {
    /* This is the correct way to loop over the directory. */
    while (false !== ($file = readdir($handle))) {
        if (strpos($file, ".xml") !== false) {
            $pathData = pathinfo($fileDir . $file);
            $fileName = $pathData['filename'];
            if ($file != '1.xml')
            $zip->addFile(file_get_contents($fileDir . $file), $file, filectime($fileDir . $file));
        }
    }
}

if (ini_get('zlib.output_compression')) {
    ini_set('zlib.output_compression', 'Off');
}

$zip->finalize(); // Not scrictly necessary, the next line will call it anyway.
$zipData = $zip->getZipData();
$length = strlen($zipData);

header('Pragma: public');
header("Last-Modified: " . $fileTime);
header("Expires: 0");
header("Accept-Ranges: bytes");
header("Connection: close");
header("Content-Type: application/zip");
header('Content-Disposition: attachment; filename="csv_xml.zip";' );
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $length);
echo $zipData;

rrmdir(__DIR__ . '/xml');