I have two columns in a table and I want to update them both using php. little help please [closed]
<?php


$dbhostname = "localhost";
$dbusername = "root";
$dbpassword = "";
$connection = mysql_connect($dbhostname, $dbusername, $dbpassword);
$desc=$_POST['desc'];
$code=$_POST['code'];


mysql_select_db("bedanshare");

$up="UPDATE learning_material SET description='$desc', code='$code' WHERE code='$code'";
mysql_query($up);

if($up){
echo "<script type="text/javascript">
                    alert("Update Success!")
                    history.back()
                    </script>";
}

mysql_close($connection);

?>