hello Friends !!
Today i will tell you that how to integrate Instant Payment Notification(IPN) inPayPal using PHP.
There are several PHP scripts and classes to process PayPal payments using their native IPN (Internet payment notification) feature. Because the whole process is based on the data you need to send via a web form to the PayPal payment processor these script look very similar.
The payment / notification process is shown via the following graphic:
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