Add categories to sublayout product,php

[encreplus]

Good day

I already add this code to productdetails/default.php and it works perfect,

Code Select Expand

<h1 class="product-title" id="compatible-products">
    <?php echo JText::_ ('COM_VIRTUEMART_ALSO_IN_CATEGORY') ?></h1>
   
   
       


<?php
 function sortByOption($a, $b) {
   return strcmp($a['category_name'], $b['category_name']);
 }
 usort($this->product->categoryItem, "sortByOption");
?>
       
        <?php $categories=$this->product->categoryItem;
 foreach ($categories as $category){
 $caturl = JRoute::_ ( 'index.php?option=com_virtuemart&view=category&virtuemart_category_id=' . $category['virtuemart_category_id'] );
 $catname=$category['category_name'];
 echo '<a href="'.$caturl.'" title="'.$catname.'">'.$catname.'</a> , ';
 }
 ?>

But when i try to add it to product.php in sublayout it destroy my page, it dosent work, any clue what is wrong ?

Stefan

[GJC Web Design]

use   $product->  instead of

$this->product->

[encreplus]

use   $product->  instead of

$this->product->

Thanks GJC

now it work in some part,  the layout of the page is destroy , and it shows all categories the product belong to only for the first product not all products that are on page  ;(

Any clue ?

[encreplus]

I have remove my sorting code and now works ok, any clue why this code destroy that page ?

<?php
function sortByOption($a, $b) {
   return strcmp($a['category_name'], $b['category_name']);
}
usort($product->categoryItem, "sortByOption");
?>