PHP:
<?php
setcookie("cøøkíé_name","cøøkíé_value",time()+60,"/");
echo $_COOKIE['cøøkíé_name'];
$_SESSION['session_name']="session_value";
echo $_SESSION['session_name'];
?>
When you are using cøøkíé, you can set the expiry of it. So that if the cøøkíé did not meet the expiry you can access its value, even you open/close your browser. But when you are using SESSION you can't set the expiry of it and when you close your browser and open it again...the data you stored in session are lost. It will be deleted automatically when you left your browser.