XML : How to insert the scanned file/directoy in the database?

Can you help me to store or insert the scanned file in the database by basename and sized. `function videoTry() {

  $path = ('/mnt/HD/HD_a2/');    $it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS));   $allowed = array(  "mp4","mov", "xvid", "m4v", "avi", "wmv",                       "asf", "flv", "f4v", "mkv", "ts", "m2ts",                       "mts", "tp", "trp", "mpg", "mpeg", "vob",                       "avs", "3gp", "3gp2", "webm", "ogm"                           );     header("Content-Type: text/xml");  $xml = new SimpleXMLElement('<config/>');  $xml_display = $xml->addChild('nas_sharing');  $count = $xml_display->addChild('auth_state', "1");          foreach ($it as $file){  if (!in_array(pathinfo($file, PATHINFO_EXTENSION), $allowed))                   continue;  $xml_item = $xml->addChild('item');  $xml_item->addChild('video', htmlspecialchars($file));  $xml_item->addChild('size', filesize($file));      }      echo $xml->asXml();    

}`