implemented loader.php

http://stackoverflow.com/questions/11787176/manage-url-routes-in-own-php-framework

This is how i implemented loader.php

   <?php
/*@author arun ak
auto load controller class and function from url*/
class loader
{
    private $request;
    private $className;
    private $funcName;

    function __construct($folder    = array())
    {   
        $parse_res  = parse_url($this->createUrl());
        if(!empty($folder) && trim($folder['path'],DIRECTORY_SEPARATOR)!='')
         {
            $temp_path  = explode(DIRECTORY_SEPARATOR,trim($parse_res['path'],DIRECTORY_SEPARATOR));
            $folder_path    = explode(DIRECTORY_SEPARATOR,trim($folder['path'],DIRECTORY_SEPARATOR));
            $temp_path      = array_diff($temp_path,$folder_path);

                if(empty($temp_path))
                {
                    $temp_path =    '';
                }
         }else
         {
            if(trim($parse_res['path'],DIRECTORY_SEPARATOR)!='')
            {
             $temp_path = explode(DIRECTORY_SEPARATOR,trim($parse_res['path'],DIRECTORY_SEPARATOR));
            }
                 else
             $temp_path ='';
         }
        if(is_array($temp_path))
        {   
            if(count($temp_path) ==1)
            {
                array_push($temp_path,'index');
            }
            foreach($temp_path as $pathname)
            {   
                $this->request .= $pathname.':';
            }
        }
        else $this->request = 'index'.':'.'index';

    }

 private function createUrl()
 {  
    $pageURL  = (@$_SERVER["HTTPS"] == "on") ?