get(0); $fp = fopen('file.txt', 'w'); fwrite($fp, print_r($cartClass, TRUE)); fclose($fp); if(!empty($oldCart)){ foreach($oldCart->cart_products as $cart_product){ if($cart_product->product_id == $products_arr[$i]) { $old_prod_id = (int)$cart_product->product_id; $new_qty = (int)$cart_product->cart_product_quantity + (int)$quantity_arr[$i]; } } } if($old_prod_id!=0 && $new_qty!=0) { $return=$cartClass->update((int)$old_prod_id,(int)$new_qty); } else { $return=$cartClass->update((int)$products_arr[$i],(int)$quantity_arr[$i]); } } echo json_encode($return); } }