Code-Snippets-Functions/Execute a function on a child site/WooCommerce/display-downloadable-product-notice.txt

function display_digital_product_notice() {
    global $product;

    if ( is_a( $product, 'WC_Product' ) && $product->is_downloadable() ) {
        echo '<div class="digital-product-notice">This is a digital product.</div>';
    }
}

add_action( 'woocommerce_before_single_product', 'display_digital_product_notice' );