$plugin_address="D:/processmaker-3.2.1-x/apps/processmaker/htdocs/cakephp/plugins";
$rootPath = $plugin_address."/".$R;
$zipFileName = $rootPath.'.zip';
$zip = new ZipArchive();
$zip->open($zipFileName, ZipArchive::CREATE | ZipArchive::OVERWRITE);

$files = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($rootPath),
    RecursiveIteratorIterator::LEAVES_ONLY
);

foreach ($files as $name => $file)
{

    if (!$file->isDir())
    {

        $filePath = $file->getRealPath();
        $relativePath = substr($filePath, strlen($rootPath) + 1);

        $filePath=str_replace("\","/",$filePath);

        $zip->addFile($filePath, $relativePath);
    }
}


$zip->close();

$zipAdress="/var/www/cakephp/plugins/backup/EstelamBasic.zip";
$plugin_address="/var/www/cakephp/plugins/EstelamBasic/";
$zip = new ZipArchive;
$res = $zip->open($zipAdress);
if ($res === TRUE) {
  $zip->extractTo($plugin_address);
  $zip->close();
}