title: not getting txn_id from paypal on success
body: <p>It's working fine with IPN (getting all the variables), but after payment when user click on "Return to Merchant Store", here I didn't get anything..</p>
  
  <p>I need the paypal variables, the same which I've got over IPN is there any another wayout?</p>
  
  <p>However I can send the order id with success url like (success.php?orderid=5), but that's a last option.</p>
  
  <p>I prefer, If the get the paypal transaction id (txn_id) on success.</p>
  
  <p>Thanks.</p>