<?php
    # set a cookie to expire in 1 hour with a user value of 'Joe Bloggs'
    setcookie("user", "Joe Bloggs", time()+3600);
    # test if count is not set and set to 0
    if (!isset($_COOKIE['count'])) {
        $_COOKIE['count'] = 0;
    }
    # set counter to counter+1 and send back a new cookie
    $count = $_COOKIE['count'] + 1;
    setcookie('count',$count,time()+3600);
?>
<html>
<body>
<?php
    if (isset($_COOKIE["user"])) {
        echo "Welcome " . $_COOKIE["user"] . "!<br />";
        echo "This is your " . $_COOKIE['count'] . " visit.";
    }
    else {
        echo "Welcome guest!<br />";
    }
?>
</body>
</html>
