Description:
------------
I was developing own array class for php5 and result was not very usable because I can't overload [] -operator..
It's good that iteration is now in php5 but better overloading support is needed.

It could work something like this:

class xArray {
    private $data = array(0 => "first", 1 => "second");
    function __index($key) {
        return $this->data[$key]
    }
}

$test = new xArray();
print($test[0]); // would print "first"