Method correctProductId

public static function correctProductId($productIdChange)
{
    $db = Factory::getDBO();
    if (!empty($productIdChange)) {
        foreach ($productIdChange as $new => $old) {
            if ($new == $old) {
                continue;
            }
            $q = 'UPDATE #__phocacart_product_related SET product_b = ' . (int) $new . ' WHERE product_b = ' . (int) $old;
            $db->setQuery($q);
            $db->execute();
        }
    }
    return true;
}