[flexcoders] AMFPHP pass objects???

[Kevin]

I am trying to pass an object type from Flex (Cairngorm) to PHP5  
through AMFPHP 1.9 and I can't seem to get it to work.  It seems that  
PHP only recognizes the object as an array and ignores any private  
variables in the object.  Can anyone think of a reason that this  
would be happening?

At it's simplest, I tried this just to try to get the object to be  
recognized:

FLEX:
var tempVO:Object = new Object;
                        tempVO.name = 'kevin';
                        tempVO.pass = '123';
var call : Object = service.login( tempVO );

PHP:

public function login( $UserVO )
{
	$this->Debug->write_log("passed from flex:\n\n".print_r($UserVO,  
true));
        return $UserVO;
}

LOG:

passed from flex:

Array
(
    [name] => kevin
    [pass] => 123
)