<?
$faddr="data.txt";
$ar=file($faddr);
$arlast = split(",",$ar[count($ar)-1]);
$lastid = $arlast[0]+1;
$file=fopen($faddr,"a");  
$newdata = str_replace(",","&#44;",$newdata);
if(fputs($file,"$lastid,$newdata\n") > 0) {
  echo "Add $lastid,$newdata: ok";
} else {
  echo "Add : error";
}
fclose($file);
?>