php adding value to session

Posted by antikbd on Stack Overflow See other posts from Stack Overflow or by antikbd
Published on 2012-10-10T09:18:46Z Indexed on 2012/10/10 9:37 UTC
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php

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arrays

I am trying to implement a 'shopping cart' where, if the 'Add to Cart' has been clicked, the respective item is either added to the cart or incremented by one if already present. However, the following code isn't working and giving me a "Cannot use a scalar value as an array" error. Any help would be highly appreciated.

if (isset($_POST['fan']) && ($_POST['fan']=="Add to Cart")) {
    if (($_SESSION['cart']['fan']==0) || (!isset($_SESSION['cart']['fan']))) {
      $_SESSION['cart']['fan']=1;
    } else {
      $_SESSION['cart']['fan']++;
    }
}

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