note 60926 deleted from ref.session by felipe

Note Submitter: pascal.fr => gmail.com 

----

If you have saved an object in session, you must define the class of the object before the session_start().
If you don't do that, php will not know the class of the object, and his type will be "__PHP_Incomplete_Class".

This:
<?php
session_start();

class Foo{
    var $fooVar = 'Hello world !!!';
}

$myFoo = new Foo();
$_SESSION['myFoo'] = $myFoo;
echo 'Save in session';
?>
define the Foo class and save an instance  in session.

<?php
session_start();

echo '<pre>';
    print_r( $_SESSION ); // don't know the Foo class...
echo '</pre>';
?>

will print : 

Array
(
    [myFoo] => __PHP_Incomplete_Class Object
        (
            [__PHP_Incomplete_Class_Name] => foo
            [fooVar] => Hello world !!!
        )

)