unknown file extension upload // CI2, CI3 : application/config/mimes.php Add MIME type 'hwp' => Array('application/unknown', 'text/plain') // CI 2.2.6 : system/libraries/Upload.php Modify public function mimes_types($mime) { global $mimes; if (count($this->mimes) == 0) { if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes.php')) { // include(APPPATH.'config/'.ENVIRONMENT..
