For when you need something. Anything in php.

gistfile1.php

<?php
class something implements \ArrayAccess, \Iterator
{

    protected $loopable = true;

    public function offsetExists($offset)
    {
        return true;
    }

    public function offsetGet($offset)
    {
        return new self();
    }

    public function offsetSet($offset, $value)
    {

    }

    public function offsetUnset($offset)
    {

    }

    function __get($name)
    {
        return new self();
    }

    function __set($name, $value)
    {

    }

    function __call($name, $arguments)
    {
        return new self();
    }

    public static function __callStatic($name, $arguments)
    {
        return new self();
    }

    function __invoke()
    {
        return new self();
    }

    function __toString()
    {
        return "something";
    }

    public function current()
    {
        return new self();
    }

    public function next()
    {
        $this->loopable = false;
        return new self();
    }

    public function key()
    {
        return "something";
    }


    public function valid()
    {
        return $this->loopable;
    }

    public function rewind()
    {

    }
}