Code-Snippets-Functions/Execute a function on a child site/WooCommerce/hide-free-products.txt

add_action( 'woocommerce_product_query', 'wc_hide_products_0_price', 9999, 2 );
   
function wc_hide_products_0_price( $q, $query ) {
   if ( is_admin() ) return;
   $meta_query = $q->get( 'meta_query');
   $meta_query[] = array(
      'key' => '_regular_price',
      'value' => 0,
      'compare' => '>',
   );
   $q->set( 'meta_query', $meta_query ); 
}