Description:
------------
When the code reaches the callback function for ob_start, the objects in $GLOBALS have been destructed.

In earlier versions of php they were not destructed at this point, making it possible to use $GLOBALS['object']->func() in output()

This is new behaviour for 5.2

Reproduce code:
---------------
<?php

class dims
{
        function x()
        {
                return "Muhahahaha";
        }
        function __destruct()
        {
                echo "IM GOING DOWN!!!";
        }
}

$GLOBALS['d'] = new dims();
function output($buffer)
{
        var_dump($GLOBALS);
        return false;
}
ob_start('output');
?>

This is a test
<hr>
<?php
        var_dump($GLOBALS);
?>


Expected result:
----------------
To have $GLOBALS['d'] still be there when reaching output()

Actual result:
--------------
$GLOBALS['d'] should still be available in output()