ZipFiles

class ZipFiles extends ZipArchive
{
        public function Compact($cwd) {
            $open = opendir($cwd);
            while($folder = readdir($open))
            {
                if ($folder != '.' && $folder != '..')
                {
                    if (is_dir($cwd.'/'.$folder))
                    {
                        $dir = str_replace('./', '',($cwd.'/'.$folder));
                        $this->addEmptyDir($dir);
                        $this->Compact($dir);
                    }
                    elseif (is_file($cwd.'/'.$folder))
                    {
                        $arq = str_replace('./', '',$cwd.'/'.$folder);
                        $this->addFile($arq);
                    }
                }
            }
        }
    }
    
    $zip = new ZipFiles();
    
    $path = date('Ym');
    $arquivo = "../nfephp/files_nfe/homologacao/Xml$path.zip";
    
    chmod($arquivo, 0777);
    
    if ($zip->open($arquivo, ZIPARCHIVE::CREATE) === true){
        $zip->Compact(".");
    }
    
    $zip->close();