[PHP] Dissapearing Session Variables (long post)

[Jason Bell]

Hello! I'm trying to figure out why my session variables keep hiding.... 

Background:

On my site, I have a login box, which allows you to login. This login box works as 
expected. It authenticates the provided credentials against my database, and then sets 
some pre-registered session variables to values pulled from the DB. What I am 
experiencing, is that my session variables will be defined, and then lose their values 
when the first link is followed. I've placed a reference to $PHPSESSID into the title 
of the page, and note that the $PHPSESSID remains constant. Is there something in my 
code that is causing this? Is there a way that I can rewrite my code to help avoid 
this?

Here is my index.php, other relevent code to follow:

<?
include("include/user.conf");
if (!$theme) { $theme = "default"; };
include("include/core_functions.php");
if ($AuthAction) {
 switch($AuthAction) {
  case login:
   include("include/db.conf");
         $sql = "SELECT uid,username,password,first,last,acl FROM users WHERE 
username='$username' AND password=PASSWORD('$password')";
         $result = mysql_query($sql) or die ('Unable to execute SQL Query.');
         $dberror=mysql_error();
         $dbnum=mysql_errno();
         if ($dberror) {
           $AuthErr = $dberror;
            } else {
                 $num = mysql_numrows($result);
                 if ($num !=0) {
                   $sess_uid = mysql_result($result,0,"uid");
                     $sess_acl = mysql_result($result,0,"acl");
                     $sess_fname = mysql_result($result,0,"first");
                     $sess_lname = mysql_result($result,0,"last");
                     $sess_uname = mysql_result($result,0,"username");
                     $sess_auth = "1";
                  } else { 
       $AuthErr = "<FONT SIZE=-1 COLOR=RED>Login Incorrect!</FONT>";
                  };
        };
   break;
  case logout:
   break;
 }
};
if (!$action) { $action = tba; };
if (!$title) { $title = "$PHPSESSID"; };
if (!$headline) { $headline = "<H2>An E-Haven for Displaced Northpointers<H2>"; };
include("Themes/".$theme."/".$theme.".theme");
?>

Here is user.conf:

<?php
if (!$PHPSESSID) {
      $sess_uid = "";
      $sess_acl = "";
      $sess_fname = "";
      $sess_lname = "";
      $sess_uname = "";
      $sess_auth = "";
                  session_register('sess_uid');
                  session_register('sess_acl');
                  session_register('sess_fname');
                  session_register('sess_lname');
                  session_register('sess_uname');
                  session_register('sess_auth');
                  };
?>


Shouldn't this work?  I reference the session variables within functions, but that 
shouldn't effect anything. I always make sure to call global for each variable before 
I use it....    any ideas?

Thanks in advance!

Jason Bell