Description:
------------
When overloading a class, the __get magic function is not called if the parameter in question has been set on the object. I'm not sure if this is by design, but it seems to defeat the purpose of it somewhat.

Reproduce code:
---------------
<?php
class Cat {

	public function __get ($variable) {

		if (method_exists ($this, "get_$variable"))
			return $this->{"get_$variable"} ();
		elseif (isset ($this->$variable))
			return $this->$variable;
		else
			throw new Exception ("$variable not found");

	}

	public function get_noise () {
		return "Meow!";
	}

}

$test = new Cat;
print $test->noise."\n";
$test->noise = "Woof!";
print $test->noise."\n";
print $test->get_noise ()."\n";
print $test->__get ("noise")."\n";
?>

Expected result:
----------------
Meow!
Meow!
Meow!
Meow!

Actual result:
--------------
Meow!
Woof!
Meow!
Meow!