PHP cookie management is a good example of how incredibly badly designed PHP is:
Set a cookie that expires when browser is closed
------------------------------------------------
Note that you most probably want to set the path, which we do here:
```php
$value = 0;
$expires = 0;
setcookie('cookie_name', $value, $expires, '/');
```
Remove cookie
-------------
```php
setcookie ('cookie_name', FALSE, time()-10000);
```
Get cookie value
----------------
```php
$_COOKIE['cookie_name']
```