Update price HTML in WooCommerce single product

add_filter('woocommerce_get_price_html', 'raza_update_woocommerce_price_html', 100, 2); function raza_update_woocommerce_price_html($price, $product) { if( is_single() ){ $price = str_replace( '<del>', ' <span class="price-was"><strong>Was:</strong><br><del>', $price ); $price = str_replace( '</del>', ' </span></del>', $price ); $price = str_replace( '<ins>', ' <span class="price-now"><strong>Now:</strong><br><ins>', $price ); $price = str_replace( '</ins>', ' </span></ins>', $price ); $price = force_balance_tags( $price ); } return force_balance_tags( $price ); }