<!-- Create an empty file myData.dat first --> <?php $cfile = "myData.dat"; $fh = fopen($cfile, "r+"); if (!$fh){ die("<BR>Failed to open file <I>$cfile</I>."); } $s = fgets($fh, 6); $count = (int) $s; $count = $count + 1; $count = str_pad($count, 6); rewind($fh); fwrite($fh, $count); echo "$count"; fclose($fh); ?>