Code-Snippets-Functions/Execute a function on a child site/WooCommerce/add-third-description-single-product-page.txt

add_action( 'add_meta_boxes', 'wc_new_meta_box_single_prod' );
 
function wc_new_meta_box_single_prod() {
   add_meta_box(
      'custom_product_meta_box',
      'Product third description',
      'wc_add_custom_content_meta_box',
      'product',
      'normal',
      'default'
   );
}
 
function wc_add_custom_content_meta_box( $post ){
   $third_desc = get_post_meta( $post->ID, '_third_desc', true ) ? get_post_meta( $post->ID, '_third_desc', true ) : '';   
   wp_editor( $third_desc, '_third_desc' );
}
 
add_action( 'save_post_product', 'wc_save_custom_content_meta_box', 10, 1 );
 
function wc_save_custom_content_meta_box( $post_id ) {
   if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
   if ( ! isset( $_POST['_third_desc'] ) ) return;
   update_post_meta( $post_id, '_third_desc', $_POST['_third_desc'] );
}
 
add_action( 'woocommerce_after_single_product_summary' , 'wc_third_desc_bottom_single_product', 99 );
   
function wc_third_desc_bottom_single_product() {
   global $product;
   $third_desc = get_post_meta( $product->get_id(), '_third_desc', true ) ? get_post_meta( $product->get_id(), '_third_desc', true ) : '';
   if ( ! $third_desc ) return;
   echo '<div>';
   echo $third_desc;
   echo '</div>';
}