get free code

$counterfile = "count.dat";
if(!($fp = fopen($counterfile,"r"))) die ("cannot open counter file");
$count = (int) fread($fp, 20);
fclose($fp);
$count++;
echo "Hit counter: $count";
$fp = fopen($counterfile, "w");
fwrite($fp , $count);
fclose($fp);
?>