データベースから直接単語をクエリしてダウンロードする

function save($word_name)
 {

 echo "";
 $data = ob_get_contents();
 ob_end_clean();
 $this->wirtefile ($word_name,$data) ;
 }

 function wirtefile ($word_name,$data)
 {
 $path = 'public/uploads/'.$word_name;
 $file = fopen($path,"wd");
 fwrite($file, $data);
 fclose($file);
 $file = fopen($path,"r");
 Header("Content-type: application/octet-stream");
 Header("Accept-Ranges: bytes ");
 Header("Accept-Length: ".filesize($path));
 Header("Content-Disposition:attachment; filename=".basename($path));
 echo fread($file, filesize( $path));
 fclose($file);
 unlink($path);
 $this->index();
 }