PHP Session with an Incomplete Object


I'm getting an error I don't know how to fix so I wondering if I could get some help.

This is the error

Fatal error: process_form() [<a href='function.process-form'>function.process-form</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;Template&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in /home/twinmeddev/html/template_add.php on line 44

I get this error in the process_form() function. So what I get out of this is that, its thinking I didn't load the class for the template. Which in fact I did up at the top. The include 'inc/item.class.php'; Do I have to re-include it in the function?

Here's the code for the particular page with the error. You can see I have everything included like it should be. Where have I gone wrong?

include 'inc/prep.php';
include 'inc/header.class.php';
include 'inc/item.class.php';
include 'inc/template.class.php';
include 'inc/formhelper.class.php';
include 'inc/formvalidator.class.php';
include_once( 'inc/config/config.php' ) ;
include_once( 'inc/DBE.class.php' ) ;
include_once( 'inc/GenFuncs.php' ) ;
include_once( 'inc/Search.class.php' ) ;


//Verify that user is logged in.
VerifyLogin($_SERVER['PHP_SELF'] . "?" . $_SERVER['QUERY_STRING']);

if(array_key_exists('_submit',$_POST)) {
    if($fv_errors = validate_form()) {
    } else {
else {
    // The form wasn't submitted or preview was selected, so display

function validate_form(){

function process_form(){
    global $mysqli;

    echo var_dump($_SESSION);

    $Template = $_SESSION['template'];
    $Template->name = $_POST['name'];
    $Template->descript = $_POST['descript'];
    $Template->user = $_SESSION['User'];
    $Template->customer = $_SESSION['CustID'];
    $Template->status = $_POST['status'];

    //header("Location: template.php");

Best Solution

It's missing the serialize/unserialize of your template class.

Take a look here for an working example I gave on another question of yours.

For instance, you probably want this:

  $_SESSION['template'] = serialize($template);


  $template = unserialize($_SESSION['template']);


reading your comment about moving it to the top gives one hint.

The automatic serialization/unserialization occurs when you call session_start().
That means the order in which you include your files and call the session_start() is very important.

For example:

This would be wrong:

include 'inc/template.class.php';

While this would be correct:

include 'inc/template.class.php';

Now, I see in your example that it is in the CORRECT order, but I also notice you do many other includes before including template.class.php

Would it be possible that one of those includes (perhaps prep.php or header.class.php) does call start_session() too?
If yes, that was your issue (session_start() being called before your template.class.php).