Code-Snippets-Functions/Execute a function on a child site/WooCommerce/display-product-category-thumbnail-above-product-thumbnail.txt

add_action('woocommerce_before_shop_loop_item_title', 'display_product_category_thumbnail', 20);
function display_product_category_thumbnail()
{
    global $product;

    $productFirstCategory = reset(get_the_terms($product->get_id(), 'product_cat'));

    $small_thumb_size = 'woocommerce_thumbnail';
    $dimensions = wc_get_image_size($small_thumb_size);

    if ($thumbnail_id = get_term_meta($productFirstCategory->term_id, 'thumbnail_id', true)) {
        $image = wp_get_attachment_image_src($thumbnail_id, $small_thumb_size);

        if (is_array($image)) {
            $image = reset($image);
        }

        $image_srcset = function_exists('wp_get_attachment_image_srcset') ? wp_get_attachment_image_srcset($thumbnail_id, $small_thumb_size) : false;
        $image_sizes = function_exists('wp_get_attachment_image_sizes') ? wp_get_attachment_image_sizes($thumbnail_id, $small_thumb_size) : false;
    } else {
        $image = wc_placeholder_img_src();
        $image_srcset = false;
        $image_sizes = false;
    }

    if ($image) {
        
        $src_set = '';
        if ($image_srcset && $image_sizes) {
            $src_set = '" srcset="' . esc_attr($image_srcset) . '" sizes="' . esc_attr($image_sizes);
        }

        echo '<img src="' . esc_url($image) . '" alt="' . esc_attr($productFirstCategory->name) 
            . '" width="' . esc_attr($dimensions['width']) . '" height="' 
            . esc_attr($dimensions['height']) . $src_set . '" />';
    }
}