Am i passing the session wrong way? can someone check.

i have page findroom.php that will redirect to the page DisplayDetails.php.

i wanted the DisplayDetails.php page to display data from the query in the page findroom.php. The data that i wanted to display from the query from page DisplayDetails is 'room_price' and 'room_type'.

However, when i clik the Book Now link, it dosesnt't display the value.

Since i'm just a starter in php, can someone tell me am i treating the session the right way as it doesn't diplay any result for the data that i wanted to take from the query in the findroom.php. But, for the the others data which is 'checkin', 'checkout' and others, it just show perfectly.

I do hope if someone can tell me am i using the session in the right way or not.

below is the code: findroom.php


<?php

session_start();

unset($_SESSION['error']);

// echo variable from the session, we set this on our other page

$_SESSION['checkin'] = $_POST['checkin'];

//$_SESSION['checkin']=$checkin;

$_SESSION['checkout'] = $_POST['checkout'];

$_SESSION['rooms']= $_POST['rooms'];

$_SESSION['adults']= $_POST['adults'];

$_SESSION['children']= $_POST['children'];

$days = (strtotime($_POST['checkout']) - strtotime($_POST['checkin'])) / (60 * 60 * 24);


$_SESSION['days']=$days;


$_SESSION['room_price']=$data['room_price'];

$room_price=$_SESSION['room_price'];


$_SESSION['room_type']=$data['room_type'];

$room_type=$_SESSION['room_type'];

?>


<html>

<body>

<form action="DisplayDetails.php" method="post">

<p>


<?php


//$result = mysql_query("SELECT id_no,room_type,room_price from room1 WHERE room_no NOT IN ( SELECT id_room_no

//FROM reservation1 WHERE datein >='$datein' AND dateout <='$dateout')");


$result = mysql_query("SELECT room_price, room_type from room1 WHERE room_no NOT IN ( SELECT id_room_no

FROM reservation1 WHERE datein >='$datein' AND dateout <='$dateout')");

?>


<?php 

    /*if(isset($_POST['Check']) && $_POST['Check']=='Submit') 

    { 

          echo "The rooms availale on the date of :";

		  echo $datein;

		  echo "  until  ";

          echo $dateout; 

    } */

?> 


</p>

<p><strong><strong>Room Availbility</strong> </p>

<td><table width="61%" height="64" border="1" cellpadding="0" cellspacing="0" bordercolor="#CC66CC" class="report2">

      <tr>

        <td width="190" bgcolor="#E8E8E8"><div align="center"><strong>Room Type </strong></div></td>

        <td width="218" bgcolor="#E8E8E8"><div align="center"><strong>Room Price </strong></div></td>

        <td bgcolor="#E8E8E8"><strong>Task</strong></div></td>

      </tr>

      <?php

		//$counter=1;

		while ($data = mysql_fetch_array($result)):

		?>

      <tr>

     

        <td><?php echo $data['room_type']; ?></td>

        <td><?php echo $data['room_price']; ?></td>

  <td width="153"><label><a href="DisplayDetails.php?id_no=<?php echo $data['id_no'];?>"><strong>Book Now</strong></a></label></td>


 

    </tr>

      <?php

  		//$counter++;

  		endwhile;

		?>

    </table>

  <table width="373" border="1">

     <tr>

       <td colspan="2"><strong>Reservation Summary</strong></td>

      </tr>

     <tr>

       <td>Check In :</td>

       <td><label>

         <?php echo $_SESSION['checkin']; ?>

       </label></td>

      </tr>

     <tr>

       <td>Check Out :</td>

       <td><label><?php echo $_SESSION['checkout']; ?></label></td>

      </tr>

     <tr>

       <td>Rooms :</td>

       <td><label><?php echo $_SESSION['rooms']; ?></label></td>

      </tr>

     <tr>

       <td>Adults Per Room :</td>

       <td><label><?php echo $_SESSION['adults']; ?></label></td>

      </tr>

     <tr>

       <td>Children Per Room :</td>

       <td><label><?php echo $_SESSION['children']; ?></label></td>

      </tr>

     <tr>

       <td>Days :</td>

       <td><?php echo $_SESSION['days']; ?></td>

     </tr>

   </table>

   <p>

    <label></label>

   </form>

  </body>

</html>

below is the code for : DisplayDetails.php



<?php

session_start();

$_SESSION['days']= $_POST['days'];

$_SESSION['room_price']= $_POST['room_price'];

$_SESSION['room_type']= $_POST['room_type'];


// echo variable from the session, we set this on our other page

//$_SESSION['checkin'] = $_POST['checkin'];

//$_SESSION['checkout'] = $_POST['checkout'];

//$_SESSION['rooms']= $_POST['rooms'];

//$_SESSION['adults']= $_POST['adults'];

//$_SESSION['children']= $_POST['children'];


?>


<html>

<body>

<h3><center>

   Room's Reservation

</center></h3>

<form action="DisplayDetails.php" method="post">


  <table width="373" border="1">

    <tr>

      <td colspan="2"><strong>Reservation Summary</strong></td>

    </tr>

    <tr>

      <td>Check In :</td>

      <td><label> <?php echo $_SESSION['checkin']; ?> </label></td>

    </tr>

    <tr>

      <td>Check Out :</td>

      <td><label><?php echo $_SESSION['checkout']; ?></label></td>

    </tr>

    <tr>

      <td>Rooms :</td>

      <td><label><?php echo $_SESSION['rooms']; ?></label></td>

    </tr>

    <tr>

      <td>Adults Per Room :</td>

      <td><label><?php echo $_SESSION['adults']; ?></label></td>

    </tr>

    <tr>

      <td>Children Per Room :</td>

      <td><label><?php echo $_SESSION['children']; ?></label></td>

    </tr>

    <tr>

      <td>Days :</td>

      <td><?php echo $_SESSION['days']; ?></td>

    </tr>

    <tr>

      <td>Room Type</td>

      <td><?php echo $_SESSION['room_type']; ?></td>

    </tr>

    <tr>

      <td>Room Price</td>

      <td><?php echo $_SESSION['room_price']; ?></td>

    </tr>

  </table>

</form>


</body>

</html>

any kinds of help really apprecited

i try to trace the output based on the session using this cod :


echo "<pre>";
var_dump($_SESSION);
echo "</pre>";

it produce that this kind of result:


array(8) {
  ["checkin"]=>
  string(12) " 	2010-03-01"
  ["checkout"]=>
  string(12) " 	2010-03-24"
  ["rooms"]=>
  string(1) "1"
  ["adults"]=>
  string(1) "1"
  ["children"]=>
  string(1) "1"
  ["days"]=>
  int(23)
  ["room_price"]=>
  NULL
  ["room_type"]=>
  NULL
}

it shows that my room_type and room_price which is the data that i wanted to take from the query at the page findroom.php is NULL. i wonderi if i'm using the right code to take the data from query is right or not?
can someone tell me is this sysntax is right or not?


$_SESSION['room_price']=$data['room_price'];
$room_price=$_SESSION['room_price'];

$_SESSION['room_type']=$data['room_type'];
$room_type=$_SESSION['room_type'];

or can someone tell me is it actually possible to take the data from the query and the make it as session variable?