How to increment a value to a session?

Question

I’m looking to add a value to a GET session. I’m doing it this way but it doesn’t work.

function addCart($product){         
  $cart['cart'][$product] = 0;
  $_SESSION[] = $cart;
}

Answer 1

Example:

function addCart($product){
    session_start();
    $_SESSION['cart'][] = $product;
}

Don’t forget to use the session_start(), can even be out of function at the beginning of the PHP document body.

References:

http://php.net/manual/en/function.session-start.php https://stackoverflow.com/questions/8259149/how-to-put-array-into-session http://www.w3schools.com/php/php_sessions.asp http://php.net/manual/en/reserved.variables.session.php