Does anybody know how to get alt text into the manufacturer image on the product information page using this code please?

PHP Code:
if ($check_image = zen_get_products_manufacturers_image((int)$_GET['products_id'])) {     echo zen_image(DIR_WS_IMAGES . $check_image);   } else {     echo 'NO IMAGE';   } 
See closed thread:

https://www.zen-cart.com/showthread....roduct-Display