woocommerce php product gallery change to carousel
add_filter( 'woocommerce_single_product_carousel_options', 'cuswoo_update_woo_flexslider_options' );
/**
* Filer WooCommerce Flexslider options - Add Navigation Arrows
*/
function cuswoo_update_woo_flexslider_options( $options ) {
$options['directionNav'] = true;
return $options;
}