it doesn't have any error but also i doesn't update in my database?
<head>
</head>
<?php include('connect.php');?>
<body>
<?php
mysql_select_db("dbusers",$connection);
$result=mysql_query("UPDATE tblinfo SET idno='$idno', name='$name', address='$address', birthdate='$birthdate', contact='$contact', email='$email' WHERE 'index'='$id'");
$result = mysql_query($update)
?>
</body>
</html>