'; $after = ''; } echo apply_filters( 'woocommerce_loop_add_to_cart_link', sprintf( '%s%s%s', esc_url( $product->add_to_cart_url() ), esc_attr( isset( $quantity ) ? $quantity : 1 ), esc_attr( $product->get_id() ), esc_attr( $product->get_sku() ), esc_attr( isset( $class ) ? $class : 'button' ), $before, esc_html( $product->add_to_cart_text() ), $after ), $product );