You Last Visited PHP Script

<?php
if(isset($_COOKIE['AboutVisit']))
{
$last = $_COOKIE['AboutVisit']; }
$year = 31536000 + time() ;
//this adds one year to the current time, for the cookie expiration
setcookie(AboutVisit, time (), $year) ;
if (isset ($last))
{
$change = time () - $last;
if ( $change > 86400)
{
echo "Welcome back! <br> You last visited on ". date("m/d/y",$last) ;
// Tells the user when they last visited if it was over a day ago
}
else
{
echo "Thanks for using our site!";
//Gives the user a message if they are visiting again in the same day
}
}
else
{
echo "Welcome to our site!";
//Greets a first time user
}
?>

• The Full Code
• Setting and Retrieving the Cookie
• Welcome Back
• New Users