CodeIgniter URI Library: Add offset functionality to the `uri_string` method.

MY_URI.php

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

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

/**
 * MY_URI Class
 *
 * Parses URIs and determines routing
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	URI
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/uri.html
 */
class MY_URI extends CI_URI {

	/**
	 * Fetch the entire, or a portion of the URI string
	 *
	 * @access	public
	 * @param	integer	the starting segment number
	 * @return	string
	 */
	function uri_string($n = FALSE)
	{
		if($n === FALSE)
		{
			return $this->uri_string;
		}

		return $this->assoc_to_uri( $this->uri_to_assoc( $n ) );
	}

}
// END URI Class

/* End of file MY_URI.php */
/* Location: ./application/core/MY_URI.php */