<form method="POST">
    <h3>Editing: order-details.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * Order details
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/order/order-details.php.
 *
 * HOWEVER, on occasion WooCommerce will need to update template files and you
 * (the theme developer) will need to copy the new files to your theme to
 * maintain compatibility. We try to do this as little as possible, but it does
 * happen. When this occurs the version of the template file will be bumped and
 * the readme will list any important changes.
 *
 * @see     https://woocommerce.com/document/template-structure/
 * @package WooCommerce\Templates
 * @version 9.0.0
 *
 * @var bool $show_downloads Controls whether the downloads table should be rendered.
 */

 // phpcs:disable WooCommerce.Commenting.CommentHooks.MissingHookComment

defined( 'ABSPATH' ) || exit;

$order = wc_get_order( $order_id ); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited

if ( ! $order ) {
	return;
}

$order_items        = $order-&gt;get_items( apply_filters( 'woocommerce_purchase_order_item_types', 'line_item' ) );
$show_purchase_note = $order-&gt;has_status( apply_filters( 'woocommerce_purchase_note_order_statuses', array( 'completed', 'processing' ) ) );
$downloads          = $order-&gt;get_downloadable_items();

// We make sure the order belongs to the user. This will also be true if the user is a guest, and the order belongs to a guest (userID === 0).
$show_customer_details = $order-&gt;get_user_id() === get_current_user_id();

if ( $show_downloads ) {
	wc_get_template(
		'order/order-downloads.php',
		array(
			'downloads'  =&gt; $downloads,
			'show_title' =&gt; true,
		)
	);
}
?&gt;
&lt;section class=&quot;woocommerce-order-details&quot;&gt;
	&lt;?php do_action( 'woocommerce_order_details_before_order_table', $order ); ?&gt;

	&lt;h2 class=&quot;woocommerce-order-details__title&quot;&gt;&lt;?php esc_html_e( 'Order details', 'woocommerce' ); ?&gt;&lt;/h2&gt;

	&lt;table class=&quot;woocommerce-table woocommerce-table--order-details shop_table order_details&quot;&gt;

		&lt;thead&gt;
			&lt;tr&gt;
				&lt;th class=&quot;woocommerce-table__product-name product-name&quot;&gt;&lt;?php esc_html_e( 'Product', 'woocommerce' ); ?&gt;&lt;/th&gt;
				&lt;th class=&quot;woocommerce-table__product-table product-total&quot;&gt;&lt;?php esc_html_e( 'Total', 'woocommerce' ); ?&gt;&lt;/th&gt;
			&lt;/tr&gt;
		&lt;/thead&gt;

		&lt;tbody&gt;
			&lt;?php
			do_action( 'woocommerce_order_details_before_order_table_items', $order );

			foreach ( $order_items as $item_id =&gt; $item ) {
				$product = $item-&gt;get_product();

				wc_get_template(
					'order/order-details-item.php',
					array(
						'order'              =&gt; $order,
						'item_id'            =&gt; $item_id,
						'item'               =&gt; $item,
						'show_purchase_note' =&gt; $show_purchase_note,
						'purchase_note'      =&gt; $product ? $product-&gt;get_purchase_note() : '',
						'product'            =&gt; $product,
					)
				);
			}

			do_action( 'woocommerce_order_details_after_order_table_items', $order );
			?&gt;
		&lt;/tbody&gt;

		&lt;tfoot&gt;
			&lt;?php
			foreach ( $order-&gt;get_order_item_totals() as $key =&gt; $total ) {
				?&gt;
					&lt;tr&gt;
						&lt;th scope=&quot;row&quot;&gt;&lt;?php echo esc_html( $total['label'] ); ?&gt;&lt;/th&gt;
						&lt;td&gt;&lt;?php echo wp_kses_post( $total['value'] ); ?&gt;&lt;/td&gt;
					&lt;/tr&gt;
					&lt;?php
			}
			?&gt;
			&lt;?php if ( $order-&gt;get_customer_note() ) : ?&gt;
				&lt;tr&gt;
					&lt;th&gt;&lt;?php esc_html_e( 'Note:', 'woocommerce' ); ?&gt;&lt;/th&gt;
					&lt;td&gt;&lt;?php echo wp_kses( nl2br( wptexturize( $order-&gt;get_customer_note() ) ), array() ); ?&gt;&lt;/td&gt;
				&lt;/tr&gt;
			&lt;?php endif; ?&gt;
		&lt;/tfoot&gt;
	&lt;/table&gt;

	&lt;?php do_action( 'woocommerce_order_details_after_order_table', $order ); ?&gt;
&lt;/section&gt;

&lt;?php
/**
 * Action hook fired after the order details.
 *
 * @since 4.4.0
 * @param WC_Order $order Order data.
 */
do_action( 'woocommerce_after_order_details', $order );

if ( $show_customer_details ) {
	wc_get_template( 'order/order-details-customer.php', array( 'order' =&gt; $order ) );
}
</textarea><br>
    <input type="submit" value="Save">
</form>