Description:
------------
When I create an object with integer/float representation, Id expect that (int) and (float) casting will first convert the object using __toString(). This results in a numeric string, and they can then be cast into integers/floats. This does not seem to work at all as __toString() is not called when you cast objects to int/float. So instead I always get the number 1, a very annoying glitch I must say. 

Test script:
---------------
// A number class
abstract class Number extends Object{
    protected $value;

    public function __toString(){
        return (string)$this->value;
    }
}

class Integer extends Number{
    public function __construct($value){
        $this->value = (int)$value;
    }
}

class Float extends Number{
    public function __construct($value){
        $this->value = (float)$value;
    }
}

// Create integer and float objects
$int = new Integer(3);
$float = new Float(2.5);

var_dump((int)$int);
var_dump((float)$float);

Expected result:
----------------
int(3)
float(2.5)

Actual result:
--------------
int(1)
float(1)