<!DOCTYPE html>
<?php
$value = "Hello world!";
// cookie will expire when the browser closes
setcookie("myCookie", $value);
// cookie will expire in 1 hour
setcookie("myCookie", $value, time()+3600);
// cookie will expire in 1 hour, and will only be available
// within the php directory + all sub-directories of php
setcookie("myCookie", $value, time()+3600, "/php/");
?>
<html>
<body>
</body>
</html>