title: PHP and Paypal IPN Subscription and recurring payments
body: <p>I need to setup paypal auto renewal for my customers in website.
  actually customer will get 30 days website access on every month payment.</p>
  
  <p>if the monthly auto payment is ok we can increase "website access" days by 30.
  if no it will not add any more days to customers account.</p>
  
  <p>that means i need to RUN a SCRIPT from my own website to check and increase or stop customers "website access" days after each auto payment.</p>
  
  <p>can we set up paypal auto renewal like this?
  is there any method to run a script (<code>mywebsite.com/renewalscript.php?customerid=123&amp;payment=ok</code>) after every auto renewal ?
  or do you have any other idea to overcome this ?</p>