PHP Paypal DoDirectPayment Method

Im getting this response from paypal and don't know how to work with it:

"The totals of the cart item amounts do not match order amounts".

These are the values Im passing, though just examples:

• $_POST["AMT"] = 41.95
• $_POST["SHIPPINGAMT"] = 19.95
• $_POST["NETAMT"] = 22

Not sure if the values have something to do with the problem. I supplied all of the required fields according to the API 开发者_运维技巧and Im using the DoDirectPayment method.

Any thoughts? Thanks.

---

Maybe this could fix your problem. I believe paypal requires you to have two digits after the decimal point so your netamt should be 22.00