WooCommerce - Storing WPML Language With Orders

<?php
	add_action('woocommerce_checkout_update_order_meta', 'save_language_to_order', 10, 2);
    function save_language_to_order($order_id, $posted)
    {
        $lang = apply_filters('wpml_current_language', null);
        if ($lang) {
            $lang = "en";
        }
        update_post_meta($order_id, '_order_language', $lang);
    }
    
    // This can be retrieved with
    $order_lang = get_post_meta($order_id, '_order_language');