Usage arrays with OOP

example.php

<?php

inculde 'oop_config.php';

echo Config::get()->site->path;
// result: some_path/

$cfg = new Config;
echo $cfg->site->path;
// result: some_path/

oop_config.php

<?php

class Config extends App
{
	private $_pointer = null;
	private $_cfg = array(
		'debug' => true,
		'site' => array(
			'path' => 'some_path/',
		),
	);
	
	static function get() {
		return (new Config);
	}
	
	function __construct() {
	}
	
	function __get($name)
	{ 
		if ($this->_pointer === null) {
			if (isset($this->_cfg[$name])) {
				$this->_pointer = $this->_cfg[$name];
			} else {
				return null;
			}
		} else {
			if (isset($this->_pointer[$name])) {
				$this->_pointer = $this->_pointer[$name];
			} else {
				return false;
			}
		}

		if (is_array($this->_pointer)) {
			return $this;
		} else {
			$result = $this->_pointer;
			$this->_pointer = null;
			return $result;
		}
	}
}