<?php

class FooClass
{
    public $foo, $moo;

    public $bar = null, $initialized = false, $configured = false, $called = false, $arguments = array();

    public function __construct($arguments = array())
    {
        $this->arguments = $arguments;
    }

    public static function getInstance($arguments = array())
    {
        $obj = new self($arguments);
        $obj->called = true;

        return $obj;
    }

    public function initialize()
    {
        $this->initialized = true;
    }

    public function configure()
    {
        $this->configured = true;
    }

    public function setBar($value = null)
    {
        $this->bar = $value;
    }
}