Returning null instead of an array

Question

I have a cart class that returns the products in a users cart

cart.class.php

    public static function getItems()
    {
        if(!isset($_SESSION["cart"]["products"]))
        {
            return array(); 
        }
        else
        {
            return $_SESSION["cart"]["products"];
        }
    }

This is the code to get the cart and display it on the page

if($action == "getCart")
{       
    echo json_encode(Cart::getItems());

    exit;
}

When I'm testing the code on my localhost, it returns [] (Empty) but on my website it returns null. What have I done wrong?

Which function returns null? getItems() or the json_encode()? — BenM
– BenM, Commented Jan 5, 2014 at 13:09
Easy-one: you face a session problem. On website, u got a session but null value... on localhost, u have no session. — farvilain
– farvilain, Commented Jan 5, 2014 at 13:09

kero · Accepted Answer · 2014-01-05 13:12:03Z

2

Try

return empty($_SESSION["cart"]["products"]) 
     ? array() 
     : $_SESSION["cart"]["products"];

That way, if $_SESSION["cart"]["products"] is null, you'll still get an empty array.

edited Jan 5, 2014 at 13:12

kero

10.7k5 gold badges44 silver badges52 bronze badges

answered Jan 5, 2014 at 13:09

Tac Tacelosky

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