Export WooCommerce Gift Card details with Order into separate column

functions.php

<?php // Do not copy this line

// Alter CSV header
add_filter('hf_alter_csv_header', 'hf_alter_order_csv_header', 10, 2);

function hf_alter_order_csv_header($export_columns, $max_line_items) {

	$gift_card_details = array('gift_card', 'gift_card_amount');
	array_splice($export_columns, 14, 0, $gift_card_details);
	return $export_columns;
}


// Alter CSV data
add_filter('hf_alter_csv_order_data', 'hf_alter_csv_order_data', 10, 2);

function hf_alter_csv_order_data($order_export_data, $order_data_filter_args) {


	$gift_card = '';
	$gift_card_amount = '';
	$order = wc_get_order($order_export_data['order_id']);
	foreach ($order->get_items('gift_card') as $item_id => $item) {
		$name = $item->get_name();
		$gift_card .= html_entity_decode($name, ENT_NOQUOTES, 'UTF-8');
		$gift_card_amount .= wc_format_decimal($item->get_amount(), 2);
	}
	$gift_card_details = array($gift_card, $gift_card_amount);
	array_splice($order_export_data, 14, 0, $gift_card_details);
	return $order_export_data;
}