http://php.flashwebhost.com/mini/1.php

Code:
<?php

session_start();

if (isset($_SESSION['guestCounter'])) {
echo '<p>Welcome, you visited this page ' . $_SESSION['guestCounter'] . ' times before.</p>'; 
$_SESSION['guestCounter'] = $_SESSION['guestCounter'] + 1;
} else {
echo '<p>Welcome, this is your first visit to this web page.</p>';
$_SESSION['guestCounter'] = 1;
}