This application is example how to implement recurring payment using Express Checkout. A part of codes is made by Integration Wizard of Samplecode on x.com.

You need modify following code to execute this example.

1. expresscheckout.php

//'------------------------------------ //' The returnURL is the location where buyers return to when a //' payment has been succesfully authorized. //' //' This is set to the value entered on the Integration Assistant //'------------------------------------ $returnURL = "http://www.example.com/review.php";

//'------------------------------------ //' The cancelURL is the location buyers are sent to when they hit the //' cancel button during authorization of payment during the PayPal flow //' //' This is set to the value entered on the Integration Assistant //'------------------------------------ $cancelURL = "http://www.example.com/index.php";

2. paypalfunctions.php

   //'------------------------------------ //' PayPal API Credentials //' Replace with your API Username //' Replace with your API Password //' Replace with your Signature //'------------------------------------ $API_UserName="shop_1303088870_biz_api1.gmail.com"; $API_Password="xxxxxxxxxxxx"; $API_Signature="yyyyyyyyyyyy";