I am counting associated products to show the the number of child items on grouped product in the category page. This is however very resource intensive. Is there a better way to show the count of the number of child products?

$_productCollection = $block->getLoadedProductCollection();

foreach ($_productCollection as $_product):

    $associatedProductsCount = count($_product->getTypeInstance()->getAssociatedProducts($_product));

    <?php if($associatedProductsCount):?>
        <p><?php echo sprintf('%s Items Available', $associatedProductsCount)?></p>
    <?php endif;?>

<?php endforeach; ?>

Edit I want to note that I went and tried the accepted answer in a small production environment v2.3.3 and it was about 10 times faster(I.E .0103 vs .00189 seconds) per call.

1 Answer 1


Look at the links I think that's one step behind the associated product collection and doesnt load the products


function getChildrenIds($parentId, $typeId)

and I think the typeId for related is 3, but check.

Note that this does not do checks for available on site, enabled/disabled etc which is part of its speed

  • thanks got it to work Jul 7, 2020 at 20:28
  • Oh good, I was in a hurry and I only use its opposite to get parent from children so didn't have time to put code in.
    – iphigenie
    Jul 9, 2020 at 7:50
  • I updated the post. This is about 10 times faster. Aug 4, 2020 at 2:33

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