Adds an order note with the returned AVS results for Elavon Credit Card transactions

wc-elavon-log-avs-results.php

<?php // only include this if needed

add_action( 'wc_payment_gateway_elavon_converge_credit_card_add_transaction_data', function( $order, $response ) {

	if ( $order instanceof \WC_Order && $response instanceof \WC_Elavon_Converge_API_Credit_Card_Transaction_Response ) {

		$message = sprintf(
			'Elavon Fraud Results:<br />AVS Result: %s<br />CSC Result: %s',
			esc_html( $response->get_avs_result() ),
			esc_html( $response->get_csc_result() )
		);

		$order->add_order_note( $message );
	}

}, 10, 2 );