this is my page ,,,,user id is not inserting in database please help;;;
 
<?php
/*session_start();
if(isset($_SESSION["currentuser"]))
{
$user=$_SESSION["currentuser"];}
include("connection.php");
if(isset($_POST['roomscheckboxes']))
{
   $room = $_POST['roomscheckboxes'];
   $n        = count($room);
   $i        = 0;
   echo "The Rooms you selected are \r\n";
     while ($i < $n)
   {
   $name=(!session_is_registered(myusername));
     $rdate=date ("Y/m/d");
  $sql = "INSERT INTO `reservation`.`roomreservation` (`username`, `roomid`, `reservation_date`) VALUES ('$_SESSION['currentuser']','$room[$i]', \'$rdate')";
  $result=mysql_query($sql);
        echo "<li>{$room[$i]}</li> \r\n";
  $i++;
    }
}
?>*/



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