How to zip and download a folder with its subfolder in php

If we want to compress/zip the folder and download it. This php code will do this.

 function Zip($source, $destination)

{

    if (!extension_loaded('zip') || !file_exists($source)) {

        return false;

    }

    $zip = new ZipArchive();

    if (!$zip->open($destination, ZIPARCHIVE::CREATE)) {

        return false;

    }

    $source = str_replace('\\', '/', realpath($source));

    if (is_dir($source) === true)

{

        $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);

        foreach ($files as $file)

        {

            $file = str_replace('\\', '/', $file);

            // Ignore "." and ".." folders

            if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..')) )

                continue;

            $file = realpath($file);

            if (is_dir($file) === true)

            {

                $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));

            }

            else if (is_file($file) === true)

            {

                $zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));

            }

        }

    }

    else if (is_file($source) === true)

    {

        $zip->addFromString(basename($source), file_get_contents($source));

    }

    return $zip->close();

}

Now call the function.

Zip('folder', './compressed.zip');

Now this javascript code will automatically download the compressed file.

<script language="javascript">

window.location="domainname/compressed.zip";

</script>