Statistics and Counters Php

/*
simple_hit_counter
steps:
1. create a file hit.txt in the current directory and type a zero as the only character in it.
If you want to cheat, instead of a zero, use the number you want to start with.
2. chmod the file to 766.
3. change the value of the variable $startdate below
3. insert this script into your web page where you want the hitcounter to be.
*/
$startdate = ""; # fill this in with a date at which the hitcounter starts, in ANY format
#(ie. 3/15/02; March 15, 2002; or 3.15.2002)
if (empty($startdate)) {
$startdate = "rollout"; }
if (!@fopen("./hit.txt", "r"))
{ die("Sorry, unable to connect to hit counter."); }
$fh = fopen("./hit.txt", "r");
$currenthits = fread($fh, 20);
fclose($fh);
$currenthits++;
echo "$currenthits hits since $startdate.";
$fh = fopen("./hit.txt", "w");
if (!$fh) die("Sorry, unable to connect to hit counter.");
fwrite($fh, $currenthits);
fclose($fh);
?>