Help with Comments

[indexx]

Hello
I want to display in module number of comments of each product and I can't deal with this:

This don't work"

{assign var='$comments' value=$product->intval(ProductComment::getCommentNumber(intval($product.id_product)))}

Code of module:

{foreach from=$products item=product name=homeFeaturedProducts}


{assign var='$comments' value=$product->intval(ProductComment::getCommentNumber(intval($product.id_product)))}




getImageLink($product.link_rewrite, $product.id_image, 'home')}" alt="{$product.name|escape:html:'UTF-8'}" /> {$product.name|escape:'htmlall':'UTF-8'}
{$product.description|strip_tags|truncate:200:'...'}

                Number of comments:  ({$comments})




        {/foreach}

Can enybody help me?