PHP - Hit Counter (Read/Write to text file)

• Open file and read total hits
• Add one to counter
• Send counter info to browser
• Open file and write new total
• Hit REFRESH or RELOAD to increment

<?
// Open file, read 25 characters & close
$fp = fopen("HitCounter.txt", "r");
$counter = (int) fread($fp, 25);
fclose($fp);

// Add one to counter variable
$counter++;

// Send Counter Info To Browser
echo "<font color=red size=5><b>You are visitor Number $counter</b></font>";

// Open file, write new counter value & close
$fp = fopen("HitCounter.txt", "w");
fwrite($fp, $counter);
fclose($fp);
?>