php creating zip file for files with unicode names -

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in php app did following:

$dn = sys_get_temp_dir() . '/' . uniqid('td', false); if (mkdir($dn) === true) {     $fn = $dn . '/' . '関連事業調査.xls';     $writer = new \phpexcel_writer_excel5($wb);     $writer->save($fn);      $fzip = sys_get_temp_dir() . '/' . uniqid('td', false) . '.zip';     $password = $this->container->getparameter('zippassword');     $out = null;      $ret = null;     exec("zip -qjp $password $fzip $dn" . '/*', &$out, &$ret); }

in linux environment correctly creates zip file given password. can unzip files in linux without problem. if download windows, , extract files, file names become incorrect. how solve problem?

zip files don't have specified encoding filenames*. consequently use of non-ascii characters unreliable.

*: not true: there extension format allows utf-8 filenames used, , zip command use it. windows's zip interface (“compressed folders”) doesn't support it, , uses default (“ansi”) code page interpret filename bytes. if know target audience have windows boxes particular locale can target locale... otherwise, best stick ascii.


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