ZipArchive

<? $FileNameZip=$_SERVER['DOCUMENT_ROOT']."/doc/{$idDoc}_cor.zip";
                    $zip = new ZipArchive;
         if ($zip->open($FileNameZip,ZipArchive::CREATE) === TRUE) {
            $zip->addFile($FileNameCFCor,  iconv("UTF-8", "cp866",'Счёт-фактура-корректировочный '.$docDate.'.xls'));
            $zip->close();

            header('Content-Type: application/zip');
            header('Content-Disposition: attachment;filename="'.$idDoc.'-'.$docDate.'-корректировочный.zip"');
            header('Cache-Control: max-age=0');
            readfile($FileNameZip);