ConfigC.php

<?php
/*
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * <benjamin.woester@googlemail.com> wrote this file. As long as you retain
 * this notice you can do whatever you want with this stuff. If we meet some
 * day, and you think this stuff is worth it, you can buy me a beer in return.
 * Benjamin Wöster
 * ----------------------------------------------------------------------------
 */
/**
 * @author     Benjamin Wöster <benjamin.woester@googlemail.com>
 * @package    libIwParsers
 * @subpackage helpers
 */

///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////

class ConfigC
{
    private $_aConfig = null;
    static private $_instance = null;

    /////////////////////////////////////////////////////////////////////////////

    static private function &getInstance()
    {
        if (self::$_instance === null) {
            self::$_instance = new ConfigC;
            self::$_instance->_aConfig = require(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'config.php');
        }

        return self::$_instance;
    }

    /////////////////////////////////////////////////////////////////////////////

    static public function get($key)
    {
        $me          =& ConfigC::getInstance();
        $retVal      =& $me->_aConfig;
        $breadcrumbs = explode('.', $key);

        foreach ($breadcrumbs as $breadcrumb) {
            if (array_key_exists($breadcrumb, $retVal)) {
                $retVal =& $retVal[$breadcrumb];
            }
        }

        return $retVal;
    }

}