unserialize() expects parameter 1 to be string, object given in /home/iqbalmkh/public

[shikra]

the page works fine 1st time only when I referesh it produces this error and only on my webserver on my xp local machine there is no problem please help

<?php
// global.inc.php

// echo "global class start <br />";
include_once 'classes/User.class.php';
include_once 'classes/UserTools.class.php';
include_once 'classes/DB.class.php';
include_once 'classes/Email.class.php';

//connect to the database
$db = new DB();
$db->connect();



//initialize UserTools object
$userTools = new UserTools();

//start the session
session_start();

//refresh session variables if logged in
if(isset($_SESSION["logged_in"])) 
{
	$user = unserialize($_SESSION["user"]);
	$_SESSION["user"] = serialize($userTools->get($user->visitorid));
}

//echo "global class end <br />";
?>

and the page i am working with is with this code

<?php 

require_once 'includes/global.inc.php';

	if(isset($_SESSION['logged_in']))
	{
		$user = unserialize($_SESSION["user"]);

		echo "Hello! You are logged in as <font size=\"4\" color=\"#CE4848\">" . $user->username . ".";
	}

	else
	{
		echo "Hello and Welcome Guest! You are not logged in.";
	}
?>

[jay6390]

You don't seem to be starting the session in this code. You should debug your session data on each page to work out what the problem is using

echo '<pre>'.print_r($_SESSION, true).'</pre>';

after you've started the session. That should help you determine what is causing this issue

[shikra]

Array
(
    [page_name] => askimk.php
    [user] => O:4:"User":19:{s:9:"visitorid";s:1:"1";s:9:"firstname";s:0:"";s:8:"lastname";s:0:"";s:8:"address1";s:0:"";s:8:"address2";s:0:"";s:4:"city";s:0:"";s:7:"country";s:0:"";s:5:"phone";s:0:"";s:6:"mobile";s:0:"";s:5:"email";s:23:"[e-mail]";s:3:"pwd";s:32:"e10adc3949ba59abbe56e057f20f883e";s:7:"created";s:19:"2009-12-30 12:25:47";s:9:"lastlogin";s:0:"";s:10:"isdisabled";s:1:"0";s:8:"sendnews";s:1:"1";s:8:"username";s:6:"zubair";s:10:"signupstep";s:1:"2";s:10:"occupation";s:0:"";s:8:"interest";s:0:"";}
    [login_time] => 2009-12-31 11:38:47
    [logged_in] => 1
)

this what I am getting on the first run about the session if you notice is started in global.inc.php

and as I am including this in the other file askimk.php so the session is automatically started i persume. on the other hand it works fine when I access it first time after I login and then referesh this page then it produces this error and also now the array data is this

Array
(
    [page_name] => askimk.php
    [user] => O:4:"User":19:{s:9:"visitorid";s:0:"";s:9:"firstname";s:0:"";s:8:"lastname";s:0:"";s:8:"address1";s:0:"";s:8:"address2";s:0:"";s:4:"city";s:0:"";s:7:"country";s:0:"";s:5:"phone";s:0:"";s:6:"mobile";s:0:"";s:5:"email";s:0:"";s:3:"pwd";s:0:"";s:7:"created";s:0:"";s:9:"lastlogin";s:0:"";s:10:"isdisabled";s:0:"";s:8:"sendnews";s:0:"";s:8:"username";s:0:"";s:10:"signupstep";s:0:"";s:10:"occupation";s:0:"";s:8:"interest";s:0:"";}
    [login_time] => 2009-12-31 11:38:47
    [logged_in] => 1
)

and above this error is produced when executing 2nd time this

require_once 'includes/global.inc.php';

now if you notice the object exist but array lost the values of user object

Any idea what to do?