check if any values are in a $_SESSION

[jasonc]

I have been using the code below to see if the session is set but this does not actually tell me if there is anything in it.  How to I find out if there are any values or content in the session even if the session is already set or not.

if (isset($_SESSION['cart'])) {
// do something
}

[Adam]

You mean any values within the 'cart' session variable? That can be achieved easily with !empty.

[TeNDoLLA]

You can use the empty() function as Adam mentioned either on separate session variables or to the whole $_SESSION array to see if theres anything. If you need to check just if session exists you can use session_id() for that. This will return empty string if there is no session or the session id if session exists.