How do I compare two DateTime objects in PHP 5.2.8?

Question

Having a look on the PHP documentation, the following two methods of the DateTime object would both seem to solve my problem:

• DateTime::diff : Get

Answer 1

The following seems to confirm that there are comparison operators for the DateTime class:

dev:~# php
 $d2);
var_dump($d1 < $d2);
?>
bool(false)
bool(true)
bool(false)
dev:~# php -v
PHP 5.2.6-1+lenny3 with Suhosin-Patch 0.9.6.2 (cli) (built: Apr 26 2009 20:09:03)
Copyright (c) 1997-2008 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies
dev:~#