Add the product ID after the cart item name in WooCommerce cart page for specific products

Question

I'm looking to hook into the woocommerce_cart_item_name filter in WooCommerce and would like to display the product ID after the name ONLY for a specific Product.

I'm looking at this code:

add_filter( 'woocommerce_cart_item_name', 'just_a_test', 10, 3 );
function just_a_test( $item_name,  $cart_item,  $cart_item_key ) {
    // Display name and product id here instead
    echo $item_name.' ('.$cart_item['product_id'].')';
}

This indeed returns the name with a product ID but it applies on all Products on my store.

Only want to display the product ID for a specified product. I'm curious how I'd go about doing this?

Answer 1

The answer, given by jpneey does not work (HTTP ERROR 500) because:

• echo was used instead of return

So you get:

function filter_woocommerce_cart_item_name( $item_name, $cart_item, $cart_item_key ) {
    // The targeted product ids, multiple product IDs can be entered, separated by a comma
    $targeted_ids = array( 30, 815 );
    
    // Product ID
    $product_id = $cart_item['variation_id'] > 0 ? $cart_item['variation_id'] : $cart_item['product_id'];
    
    if ( in_array( $product_id, $targeted_ids ) ) {
        return $item_name . ' (' . $product_id . ')';
    }

    return $item_name;
}
add_filter( 'woocommerce_cart_item_name', 'filter_woocommerce_cart_item_name', 10, 3 );