$_SESSION, session_register and session_unregister

[padanaram]

I am modifying some scripts to use $_SESSION without registered globals turned on. The scripts curreently use session_register, session_unregister and so on.

I need to know what to do to modify the scripts to use $_SESSION.

Here is some code from the scripts where the scripts use session_register, unregister, etc.

session_is_registered

if (session_is_registered("order_no"))
   {
      echo "\t<td><input type=\"submit\" name=\"empty\" value=\"Empty Cart\"></td>\n";
      echo "\t<td><input type=\"submit\" name=\"view\" value=\"View Cart\"></td>\n";
   }

if (session_is_registered("order_no")) 
      {
         $cartQuery = "SELECT qty, price, wine_id, item_id " .
                      "FROM items " .
                      "WHERE cust_id = -1 " .
                      "AND order_id = " . $order_no;

session_register

session_register("message");

  $message = "Incorrect parameters to example.cart.3.php";

session_unregister

// Finally, destroy the session variable
     session_unregister("order_no");

[Weedpacket]

session_is_registered($foo) => isset($SESSION['foo'])
session_unregister($foo) => unset($SESSION['foo'])

session_register($message) is gone
$_SESSION['message'] = 'Incorrect.....';

[padanaram]

Thank you for your help.