algo parecido a mediafire

[redvirus13]

este parte del script el inicio

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/

// ------------------------------------------------------------------------

/**
* Loader Class
*
* Loads views and files
*
* @package CodeIgniter
* @subpackage Libraries
* @author ExpressionEngine Dev Team
* @category Loader
* @link http://codeigniter.com/user_guide/libraries/loader.html
*/
class CI_Loader {

// All these are set automatically. Don't mess with them.
var $_ci_ob_level;
var $_ci_view_path = '';
var $_ci_is_php5 = FALSE;
var $_ci_is_instance = FALSE; // Whether we should use $this or $CI =& get_instance()
var $_ci_cached_vars = array();
var $_ci_classes = array();
var $_ci_loaded_files = array();
var $_ci_models = array();
var $_ci_helpers = array();
var $_ci_plugins = array();
var $_ci_varmap = array('unit_test' => 'unit', 'user_agent' => 'agent');


/**
* Constructor
*
* Sets the path to the view files and gets the initial output buffering level
*
* @access public
*/
function CI_Loader()
{
$this->_ci_is_php5 = (floor(phpversion()) >= 5) ? TRUE : FALSE;
$this->_ci_view_path = APPPATH.'views/';
$this->_ci_ob_level = ob_get_level();

log_message('debug', "Loader Class Initialized");
}

// --------------------------------------------------------------------

/**
* Class Loader
*
* This function lets users load and instantiate classes.
* It is designed to be called from a user's app controllers.
*
* @access public
* @param string the name of the class
* @param mixed the optional parameters
* @param string an optional object name
* @return void
*/
function library($library = '', $params = NULL, $object_name = NULL)
{
if ($library == '')
{
return FALSE;
}

if ( ! is_null($params) AND ! is_array($params))
{
$params = NULL;
}

if (is_array($library))
{
foreach ($library as $class)
{
$this->_ci_load_class($class, $params, $object_name);
}
}
else
{
$this->_ci_load_class($library, $params, $object_name);
}

$this->_ci_assign_to_models();
}

// --------------------------------------------------------------------

/**
* Model Loader
*
* This function lets users load and instantiate models.
*
* @access public
* @param string the name of the class
* @param string name for the model
* @param bool database connection
* @return void
*/
function model($model, $name = '', $db_conn = FALSE)
{
if (is_array($model))
{
foreach($model as $babe)
{
$this->model($babe);
}
return;
}

if ($model == '')
{
return;
}

// Is the model in a sub-folder? If so, parse out the filename and path.
if (strpos($model, '/') === FALSE)
{
$path = '';
}
else
{
$x = explode('/', $model);
$model = end($x);
unset($x[count($x)-1]);
$path = implode('/', $x).'/';
}

if ($name == '')
{
$name = $model;
}

if (in_array($name, $this->_ci_models, TRUE))
{
return;
}

$CI =& get_instance();
if (isset($CI->$name))
{
show_error('The model name you are loading is the name of a resource that is already being used: '.$name);
}

$model = strtolower($model);

if ( ! file_exists(APPPATH.'models/'.$path.$model.EXT))
{
show_error('Unable to locate the model you have specified: '.$model);
}

if ($db_conn !== FALSE AND ! class_exists('CI_DB'))
{
if ($db_conn === TRUE)
$db_conn = '';

$CI->load->database($db_conn, FALSE, TRUE);
}

if ( ! class_exists('Model'))
{
load_class('Model', FALSE);
}

require_once(APPPATH.'models/'.$path.$model.EXT);

$model = ucfirst($model);

$CI->$name = new $model();
$CI->$name->_assign_libraries();

$this->_ci_models[] = $name;
}