",$content_info);        array_pop($ping_url_arr);        foreach($ping_url_arr as $ping_url1)        {            $robots_content.="Sitemap:".$ping_url1.PHP_EOL;        }        $robots_file=fopen($_SERVER["DOCUMENT_ROOT"]."/robots.txt","w");        fwrite($robots_file,$robots_content);        fclose($robots_file);        echo "robots.txt done";        exit;    }}?>