Re: object persistence within a session

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>Did storing the object reference not also store the class definition?

No. You need to include the class definition. Take a look at:
http://br.php.net/manual/en/function.unserialize.php, maybe you can use the
*unserialize_callback_func *to load the class definition.

Ângelo




2008/11/7 Stan <stanleytberry@xxxxxxxxx>

> If this is the wrong forum, please point me at the correct forum.
>
> I am new to PHP but have 40 years experience programming.
>
> My initial effort includes a class definition which needs to persist for
> the duration of a WWW session.  The code (this snippet is the beginning of
> Default.php)
>
>  <?PHP
>   session_start();
>   require_once 'CSSFrames_Includes/Classes.inc';
>   if (!isset($_SESSION["navigator"]))
>    {
>    $_SESSION["navigator"] = new CSSFrames_Navigator;
>    }
>   else
>    {
>    parse_str($_SERVER['QUERY_STRING'], $queryString);
>    foreach ($queryString as $key => $value)
>     {
>     switch($key)
>      {
>      case "ID":
>       $_SESSION["navigator"]->set_page_ID($value);
>       break;
>      default:
>       break;
>      }
>     }
>    }
> initially works ... $_session["navigator"] does exist and methods do
> function correctly.  When, however, I click a link and cause the script
> (Default.php) to be reentered, I get the following
>
> Fatal error: main() [<a href='function.main'>function.main</a>]: The script
> tried to execute a method or access a property of an incomplete object.
> Please ensure that the class definition &quot;MyClass_defined&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
> /MyWebSite.com/Default.php on line 16
>
> which I understand to mean that my class definition (file?) has not been
> loaded.  What I do not understand is why has not the class definition been
> loaded?  Did storing the object reference not also store the class
> definition?  What must I do to retain the class definition as part of the
> session data?
>
> Thanks,
> Stan

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