PHP Snippet #3: Add a Custom Sorting Option @ WooCommerce Shop

/**
* @snippet       Add a Custom Sorting Option @ WooCommerce Shop
* @how-to        Get CustomizeWoo.com FREE
* @author        Rodolfo Melogli
* @testedwith    WooCommerce 4.0
* @donate $9     https://businessbloomer.com/bloomer-armada/
*/
  
// 1. Create new product sorting rule
  
add_filter( 'woocommerce_get_catalog_ordering_args', 'bbloomer_sort_by_name_woocommerce_shop' );
  
function bbloomer_sort_by_name_woocommerce_shop( $args ) { 
   $orderby_value = isset( $_GET['orderby'] ) ? wc_clean( $_GET['orderby'] ) : apply_filters( 'woocommerce_default_catalog_orderby', get_option( 'woocommerce_default_catalog_orderby' ) );
   if ( 'name' == $orderby_value ) {
      $args['orderby'] = 'title';
      $args['order'] = 'DESC';
   } 
   return $args;
}
  
// 2. Add new product sorting option to Sorting dropdown
  
add_filter( 'woocommerce_catalog_orderby', 'bbloomer_load_custom_woocommerce_catalog_sorting' );
  
function bbloomer_load_custom_woocommerce_catalog_sorting( $options ) {
   $options['name'] = 'Sort by name (desc)';
   return $options;
}