How to show product QTY on category / Related Products?

I need to show the current stock status (field "quantity" in table "product") directly on the category page, as well as the "Related Products" carousel.

In other words, I want to show the price AND stock, right in the category, BEFORE clicking on the product itself.

I can directly show <?php echo $product['href']; ?>, <?php echo $product['name']; ?>, <?php echo $product['description']; ?>, <?php echo $product['price']; ?>, and so on - but the moment I add the code <?php echo $product['quantity']; ?>, I get an "Undefined index: quantity" error.

How can I get this to work?

Go over to catalog/controller/product/category.php and find
below that line, add
That should allow you to print the quantity on the category template

Unfortunately, this takes the quantity of the 1st item listed on the category, and replicates it to ALL items in the category. So, it's meaningless...

That shouldn't be the case if you added it correctly.