<?php
////////////////////////////////////////////////////////////////////////////////
// example.php
// PHP paypal_ipn class example
////////////////////////////////////////////////////////////////////////////////

require("paypal_ipn.php");

// PayPal will send the information through a POST
$paypal_info = $HTTP_POST_VARS;

// To disable https posting to PayPal uncomment the following
// $paypal_ipn = new paypal_ipn($paypal_info, "");

// Then comment out this one
$paypal_ipn = new paypal_ipn($paypal_info);

// where to contact us if something goes wrong
$paypal_ipn->error_email = "webmaster@example.com";

// We send an identical response back to PayPal for verification
$paypal_ipn->send_response();

// PayPal will tell us whether or not this order is valid.
// This will prevent people from simply running your order script
// manually
if( !$paypal_ipn->is_verified() )
{
	// bad order, someone must have tried to run this script manually
	$paypal_ipn->error_out("Bad order (PayPal says it's invalid)");
}

// payment status
switch( $paypal_ipn->get_payment_status() )
{
	case 'Completed':
		// order is good
	break;

	case 'Pending':
		// money isn't in yet, just quit.
		// paypal will contact this script again when it's ready
		$paypal_ipn->error_out("Pending Payment");
	break;

	case 'Failed':
		// whoops, not enough money
		$paypal_ipn->error_out("Failed Payment");
	break;

	case 'Denied':
		// denied payment by us
		// not sure what causes this one
		$paypal_ipn->error_out("Denied Payment");
	break;

	default:
		// order is no good
		$paypal_ipn->error_out("Unknown Payment Status" . $paypal_ipn->get_payment_status());
	break;

} // end switch



// If we made it down here, the order is verified and payment is complete.
// You could log the order to a MySQL database or do anything else at this point.

// Email the information to us
$date = date("D M j G:i:s T Y", time());

$message .= "\n\nThe following info was received from PayPal - $date:\n\n";
@reset($paypal_info);
while( @list($key,$value) = @each($paypal_info) )
{
	$message .= $key . ':' . " \t$value\n";
}
mail("root@example.com", "[$date] PayPal Payment Notification", $message);

?>