Software :: Cannot Get Php Script To UPDATE Mysql Database

I'm having problems with my coding. Here is the problem: I have a database with a list of products. I can list all the products OK At the side of each product I have an EDIT and DELETE button. The delete button works fine and deletes the item. The EDIT button displays a form with all the details from the database. I can then edit this form and click on UPDATE. This is the code that I have to update the database:

$group = $_REQUEST['group'];
$description = $_REQUEST['description'];
$quantity = $_REQUEST['quantity'];
$price = $_REQUEST['price'];
$type = $_REQUEST['type'];
$type2 = $_REQUEST['type2'];
$order = $_REQUEST['order'];
$status = $_REQUEST['status'];
[Code]....

I cannot see anything wrong with this code. But when I click on UPDATE (in the form), I get Error in executing UPDATE exhausts SET group = 'Alloy Silencers', description = 'RS 125 Aprilia', quantity = '1', price = '57.00', type = 'alloy', type2 = 'all', order = '', status = '1' WHERE id = '3' query

error:1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group = 'Alloy Silencers', description = 'RS 125 Aprilia', quantity = '1', price' at line 1I have used this code many time before in other projects without problems.