woocommerce - How do I get the most top level category of the current product category

Question

I have a Woocommerce product and I need to display on that page the Most top level category of a category assigned to the product

- Main Product Category
-- Sub Product Category
--- Category Assigned to product

I need to get the ID or name of "Main Product Category" so that I can display it in the single product category.

I already tried doing the following:

global $post;
$terms = get_the_terms( $post->ID, 'product_cat' );

foreach ($terms as $term) {
$product_cat_id = $term->term_id;

$thetop_parent = woocommerce_get_term_top_most_parent( $product_cat_id , 'product_cat' );

echo $thetop_parent;
}

But It didn't worked at all and it brakes the page from loading after woocomerce_get_term... I'm not sure what to do at this point It

thanks for any help on this.

Answer 1

After a lot of research I figured a way to solve this. I hope this will help someone.

solution:

global $post;
$prod_terms = get_the_terms( $post->ID, 'product_cat' );
foreach ($prod_terms as $prod_term) {

    // gets product cat id
    $product_cat_id = $prod_term->term_id;

    // gets an array of all parent category levels
    $product_parent_categories_all_hierachy = get_ancestors( $product_cat_id, 'product_cat' );  



    // This cuts the array and extracts the last set in the array
    $last_parent_cat = array_slice($product_parent_categories_all_hierachy, -1, 1, true);
    foreach($last_parent_cat as $last_parent_cat_value){
        // $last_parent_cat_value is the id of the most top level category, can be use whichever one like
        echo '<strong>' . $last_parent_cat_value . '</strong>';
    }

}