Description:
------------
I am using PHP5-b2 and Apache 2.0.47 with Windows XP. Apache crashes when the below code is run.

Reproduce code:
---------------
class Foo {
    private $bar = array();
    function __get($var) {
        return(isset($this->bar[$var]) ? $this->bar[$var] : NULL);
    }
    function __set($var,$val) {
        $this->bar[$var] = $val;
    }
}

$foo = new Foo();

// Works
// $foo->test = array('testing'=>'testing, 1...2...3...');

// Doesn't work, crashes Apache
$foo->test = array();
$foo->test['testing'] = 'testing, 1...2...3...';

print_r($foo->test);

Expected result:
----------------
Array
(
    [testing] => testing, 1...2...3...
)

Actual result:
--------------
Apache crashes! No output.