[Yoco WooCommerce] Use the order's display order number as the transaction description during checkout.

yoco-custom-description.php

<?php

/**
 * This recipe modifies the Yoco plugin to use the order's display order number
 * as the transaction description during checkout.
 * 
 * It is intended for use with the Yoco Payments plugin for WooCommerce:
 * https://wordpress.org/plugins/yoco-payment-gateway/
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress
 * repository - https://wordpress.org/plugins/code-snippets/.
 */

function my_wc_yoco_popup_configuration( $yoco_popup_configuration, $order ) {
	$yoco_popup_configuration['description'] = $order->get_order_number();
	return $yoco_popup_configuration;
}
add_filter( 'wc_yoco_popup_configuration', 'my_wc_yoco_popup_configuration', 10, 2);