付款后如何处理Paypal Express Checkout中的网络故障？

Question

I am using paypal Express Checkout method in my PHP site to get the payment from the user. My problem is if i loss the internet connection after the user made the payment in paypal website but if network fails before it reaches back to my website with the result array from where i will get the transaction details like transaction id, amount, etc.,

How to handle this situation?

Answer 1

Finally i found answer to my own question which left unanswered for lot of days based on the Robert's comment. Please read this complete document to know the complete details.