Use an IPN (Instant Payment Notification), or put the value in the return URL (for example, "file.php?price=1.25").
It really depends on what your planning to do ^^ In your case I would do the return url, the code should look like:
PHP Code:
<?php
$price = $_GET['price']; // Get the variable from the URL.
if(is_numeric($price)){ // If it's a number, otherwise they may be hacking you.
echo "Thanks for your payment of {$price}";
} else { // If it's a possible hack...Could be by error though.
echo "Thank you for your payment.";
// You may want to log the IP/Session here.
}
?>
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Last edited by rogem002; 01-21-2008 at 11:28 AM..
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