Why error on line

[hance2105]

hello guys,

 

y am i having an error on this line of code

 

<?php

$cartItemCount = count($_SESSION['cart']);

?>

 

do i need to define the 'cart'?

 

how i do it if need be?

 

please

[boompa]

$_SESSION['cart'] = array();

or

if (isset($_SESSION['cart']))
    $cartItemCount = count($_SESSION['cart']);
else
    $cartItemCount = 0;

or, using the ternary operator

 

$cartItemCount = (isset($_SESSION['cart']) ? count($_SESSION['cart']) : 0;