cannot update the db with below query. little help will be much aprreicated. Thanks in advacne
$order_number=$_GET['order_number'];
$invoice_id=$_GET['invoice_id'];
$credit_card_processed=$_GET['credit_card_processed'];
$total=$_GET['total'];
$key=$_GET['key'];
$email=$_GET['email'];
$query = "UPDATE register_users SET order_number=$order_number, invoice_id=$invoice_id,
credit_card_processed=$credit_card_processed, total=$total, key=$key WHERE email=$email";