Error while Storing Object Variables as Session Variables.

[joeann]

I am a beginner in PHP programming. I was trying to store object variables as session variables, so that we don't have to create an object every time the page loads.

I have a simple class file simple.php

<?php
class simple{
function dummy(){
print "TEST SUCCESSFUL!\n";
}
}
?>

Then I created a simple .php which starts a new session and registers the object-variable of the class.

// test1.php

<?php
require ("simple.php");
session_start();
$CLSOBJ=new simple();
session_register("CLASSOBJ");
$CLASSOBJ=$CLSOBJ;
print isSet($_SESSION['CLASSOBJ']);
$CLASSOBJ->dummy();
?>

This file works fine and it prints the required result.

In the other .php files I have added the following lines:

Eg:// test2.php

<?php
require("simple.php");
session_start();
print isSet($_SESSION['CLASSOBJ']);
$CLASSOBJ->dummy();
?>

Here in test2.php the session variable is active. So, it outputs "1" for
'print isSet($_SESSION['CLASSOBJ']);'
but a fatal error like 'Call to a member function on a non-object in' is coming for '$CLASSOBJ->dummy();' . Any idea?Pls help....

[tunage]

Your first problem is you never store the $CLSOBJ in the session you store $CLASSOBJ.

[MAN]session_register[/MAN] is now deprecated, just use $_SESSION instead eg -

// test1.php 

<?php 
require ("simple.php"); 
session_start(); 
$CLASSOBJ=new simple(); 
$_SESSION['CLASSOBJ'] = $CLASSOBJ;
//$CLASSOBJ=$CLSOBJ; 
print isSet($_SESSION[CLASSOBJ]); 
$CLASSOBJ->dummy(); 
?> 

Also in test2.php $CLASSOBJ hasnt been assigned the session variable, you need to change it to -

 //test2.php 

<?php 
require("simple.php"); 
session_start(); 
print isSet($_SESSION['CLASSOBJ']); 
$CLASSOBJ = $_SESSION['CLASSOBJ'];
$CLASSOBJ->dummy(); 
?>

You may also need to [MAN]serialize[/MAN] and [MAN]unserialize[/MAN] objects when putting into and extracting from sessions. Can anyone clarify this?