<form method="POST">
    <h3>Editing: up-sells.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * Single Product Up-Sells
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/single-product/up-sells.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     3.0.0
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( $upsells ) : ?&gt;

	&lt;section class=&quot;up-sells upsells products&quot;&gt;
		&lt;?php
		$heading = apply_filters( 'woocommerce_product_upsells_products_heading', __( 'You may also like&amp;hellip;', 'woocommerce' ) );

		if ( $heading ) :
			?&gt;
			&lt;h2&gt;&lt;?php echo esc_html( $heading ); ?&gt;&lt;/h2&gt;
		&lt;?php endif; ?&gt;

		&lt;?php woocommerce_product_loop_start(); ?&gt;

			&lt;?php foreach ( $upsells as $upsell ) : ?&gt;

				&lt;?php
				$post_object = get_post( $upsell-&gt;get_id() );

				setup_postdata( $GLOBALS['post'] =&amp; $post_object ); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited, Squiz.PHP.DisallowMultipleAssignments.Found

				wc_get_template_part( 'content', 'product' );
				?&gt;

			&lt;?php endforeach; ?&gt;

		&lt;?php woocommerce_product_loop_end(); ?&gt;

	&lt;/section&gt;

	&lt;?php
endif;

wp_reset_postdata();
</textarea><br>
    <input type="submit" value="Save">
</form>