[RESOLVED] Objects in Sessions

[slindstr]

I've searched around this board and google a bunch of times and I can't seem to get this to work. Here's the premise:

I've got one php page that creates an object. After the user submits a form on that page they are redirected to another page that needs to recieve that object from the previous page. How do I accomplish this?

Here's the php code from the first page (step2.php):

<?php
session_start();

require_once("Listing.class.php");
require_once("variables.php");

$newListing = new Listing;
$newListing->setPrice($_POST['price']);
$newListing->setMLS($_POST['mls']);
$newListing->setTitle($_POST['title']);
$_SESSION['newListing'] = $newListing;
?>

then it displays the form the user needs to fill out. When they click the submit button, the action points to this page (addListing.php):

<?php
session_start();
require_once("Listing.class.php");
require_once("variables.php");
$newListing = null;

if(isset($_SESSION['newListing']))
{
    $newListing = $_SESSION['newListing'];
    echo "Session Active.";
    echo $newListing->getTitle();
}    

else
    echo "Session Ended.";



?>

I've also tried serializing/unserializing the object and that also doesn't work. I'm sure I'm probably doing something really stupid, but alas, it's my first time messing around with sessions :bemused:

Thanks
Steve

[thorpe]

your code looks fine. have you error handling turned on and is it outputting anything?

[slindstr]

Thanks for your quick reply!

Every time the submit button is pressed on the first page the second page outputs "Session Ended." I looked at my php.ini file and all of the session info seems right - I'm really at a loss here...

Thanks
Steve

[thorpe]

just for a second try taking it out of the if() just to see if there is a problem there.

[slindstr]

No dice. Here's the output (which I assume I am recieveing because there is not object to call the function):

Session Active.
Fatal error: Call to a member function on a non-object in /home/slindstr/public_html/leo/addListing.php on line 12

[thorpe]

alright. ive just discovered something while testing some stuff. im getting a different error to you, but it might help.

on the second page try moving your includes up before the call to session_start().

i was getting an error, something to do with __unserialise (i assume session_start() does this internally) being called before the objects definition. yours does however seem to be more of a session problem.

another thing you might want to try is removing the line

$newListing = null;

you dont really need it, and although im sure it shouldn't be effecting anything, lets eliminate all possibilities.

[bpat1434]

Hmm... I'm not sure, by try instantiating the object in the for of:

$var =& new Object;

That creates a reference, rather than an object. See if a reference to the object will work. I doubt it, but it's worth a shot.

~Brett

[slindstr]

I changed the line

$newListing = null; to just

$newListing;

and didn't change anything else - it magically works now! I wouldn't have thought that that would do anything but I guess I won't argue with PHP.

Thanks a lot for your help!

Steve

[thorpe]

yeah... i do vaguely remember some conversation about this. glad is working now.