# getExpiration

Learn how to read the cookie expiration time.

This method provides the expiration time of the cookie.

## Signature

This method has the following signature:

```php
public function getExpiration(): ?int
```

This method returns the expiration time as a Unix timestamp in seconds, or `null` for a session cookie.

## Example

Here is a basic example of how to use this method:

```php
<?php
use Croct\Plug\CookieStorage;

$cookies = CookieStorage::fromGlobals()->getResponseCookies();
$expiration = $cookies[0]->getExpiration();
```