php simple stub object

stub.php

<?php
  
  class stub implements ArrayAccess, Countable, Iterator  {
    
    public $position = 0;
    
    public function __get($name){
      return new stub();
    }
    
    public function __call($name, $lo){
      return new stub();
    }
    
    public function offsetExists($offset)
    {
        return true;
    }

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

    public function offsetSet($offset, $value)
    {
        
    }

    public function offsetUnset($offset)
    {
       
    }
    
    public function count() 
    { 
        return 2; 
    } 

  
    public function __toString(){
      return 'text';
    }


    function rewind() {
        $this->position = 0;
    }

    function current() {
        return new $this();
    }

    function key() {
        return $this->position;
    }

    function next() {
        ++$this->position;
    }

    function valid() {
        if($this->position >2) return false;
        return true;
    }
  }
  
  $stub = new stub();
  
  echo $stub['fsdfsdf']['fdsfdf']['fsdfsdfsd'];
  echo $stub;
  echo $stub->fdsfsdf;
  echo $stub->ffsdfdf();
  
  echo count($stub);
  
  foreach($stub as $item){
    echo  '---------------'.$item['fdfsdf']['ggergerg'];
  }
  
?>