PayPal Instant Payment Notification (IPN) is a notification service that used to notify merchants about the PayPal transaction. This notification is sent to the URL which you have set in notify_url variable of the HTML payment form. Using the Notify URL yo...

PayPal is a widely used payment gateway to accept payment in the web application. PayPal payment gateway is the easiest option for the web developer to integrate payment gateway on the website. PayPal Standard Payment Gateway is the quickest way to accept...