public function alter_variation_json($variation_data, $wc_product_variable, $variation_obj) { $img_ids = WPB_Common_Functions::get_all_image_ids($variation_data['variation_id']); unset($img_ids[0]); $images = WPB_Common_Functions::get_all_image_sizes($img_ids); $variation_data['additional_images'] = $images; return $variation_data; }