PHP 파일 생성

$fp = @fopen("$DOCUMENT_ROOT/../log_txt/etc/216_".date("Ymd").".txt", "a");
@fwrite($fp, date("Y/m/d(H:i:s)")."\t".$aa."\t".$HTTP_REFERER."\t".$HTTP_SERVER_VARS["HTTP_USER_AGENT"]."\t".$REMOTE_ADDR."\n");
@fclose($fp);