Description:
------------
Empty returns false whenever a property of an object is accessed through __get.  This problem has been reported before. The answer that "it's a feature" is entirely bogus - Either return the right value or throw a damn error but don't do nothing and leave people to wonder what the Hell is going on with their script. I just lost two full days to this "feature" and I'm not amused.

empty(someFunction());

throws an error.  If this bug is too much trouble to fix set it up so

empty($object->property);

also throws an error when a __get has been set.

Reproduce code:
---------------
class foo
{
	protected $data = array();
	public function __set($element, $value) { $this->data[$element] = $value; }
	public function __get($element) { return $this->data[$element]; }
}

$bar = new foo();

$bar->cat = 'meow';

empty($bar->cat); // returns false, as expected.

$bar->cat = '';

empty($bar->cat); // returns false, should return true.