下载文件

public function downLoadAction(){        $request = $this->getRequest();        $filePath = $request->get('filePath');        header('Content-Type:application/octet-stream');        header('Content-Disposition: attachment; filename='.basename($filePath));        $file = fopen($filePath,'rb');        print_r(fread($file,filesize($filePath)));        fclose($file);    }