Writing Into Db After PayPal Integration

[yoursanjay]

Hi,

I am using the following script for PayPal integration for my site.  After successful transaction the page is redirected to thankyou.php page. In this page I want to store the PayPal transaction information into my db. I am passing Invoice id & user id at the time of integration. I need these two values (invoice id & userid) in thankyou.php page. How will I get these values so that i can run my sql?

 

$userid=$_GET['userid'];
$invoiceid=$_GET['invoiceid'];
$cost=$_GET['cost'];
$_SESSION['payment_check']=time();

<input type="hidden" name="cmd" value="_xclick" />
                                  <input type="hidden" name="business" value="<?=$paypal?>" />
                                  <input type="hidden" name="item_name" value="Invoice #<?=$invoiceid?>" />
                                  <input type="hidden" name="amount" value="<?=$cost?>" />
                                  <input type="hidden" name="no_shipping" value="1" />
                                  <input type="hidden" name="no_note" value="1" />
                                  <input type="hidden" name="currency_code" value="<?=$paypal_curr?>" />
                                  <input type="hidden" name="lc" value="<?=$paypal_lang?>" />
							  <input type="hidden" name="at" value="xxxxxxxxxxxxxxxxxxxxxxxxx">  
							  <input name="Custom" id="Custom" type="hidden" value="<?=$userid?>"/>
                                  <input type="hidden" name="bn" value="PP-BuyNowBF" />
							  
							  <input name="sucess_return" id="sucess_return" type="hidden" value="<?=$site_url?>thankyou.php?key=<?=base64_encode($_SESSION['payment_check']."-a")?>" />
<input name="cancel_return" id="cancel_return" type="hidden" value="<?=$site_url?>cancel.php?key=<?=base64_encode($_SESSION['payment_check']."-b")?>" />
<input id="return" type="hidden" name="return" value="<?=$site_url?>thankyou.php?key=<?=base64_encode($_SESSION['payment_check']."-a")?>">
<input name="notify_url" id="notify_url" type="hidden" value="<?=$site_url?>thankyou.php?key=<?=base64_encode($_SESSION['payment_check']."-a")?>" />

                                  <input name="paypal" type="image" src="images/button/paypal.gif" align="right" />