zen_get_uprid issue in 1.5.6c

[swguy]

Because of a change made in 1.5.6c - in includes/classes/shopping_cart.php, line 1963 we now have

$real_ids = isset($_POST['id']) ? $_POST['id'] : array();

(the false branch used to be "")

This breaks zen_get_uprid. In 1.5.6c, it should be changed

FROM:
function zen_get_uprid($prid, $params) {
$uprid = $prid;
if (!is_array($params) || strstr($prid, ':')) return $prid;


TO:
function zen_get_uprid($prid, $params) {
$uprid = $prid;
if (!is_array($params) || empty($params) || strstr($prid, ':')) return $prid;

[swguy]

Proof of concept: add an item with no attributes to the cart. Hover over the product in the cart and you will see instead of an integer product id, a product id with a colon and an MD5 value.

[swguy]

This issue has been fixed in 1.5.7.
https://github.com/zencart/zencart/pull/2765