system/helpers/directory_helper.php

<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.2.4 or newer
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the Open Software License version 3.0
 *
 * This source file is subject to the Open Software License (OSL 3.0) that is
 * bundled with this package in the files license.txt / license.rst.  It is
 * also available through the world wide web at this URL:
 * http://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to obtain it
 * through the world wide web, please send an email to
 * licensing@ellislab.com so we can send you a copy immediately.
 *
 * @package		CodeIgniter
 * @author		EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2013, EllisLab, Inc. (http://ellislab.com/)
 * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * CodeIgniter Directory Helpers
 *
 * @package		CodeIgniter
 * @subpackage	Helpers
 * @category	Helpers
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/helpers/directory_helper.html
 */

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

if ( ! function_exists('directory_map'))
{
	/**
	 * Create a Directory Map
	 *
	 * Reads the specified directory and builds an array
	 * representation of it. Sub-folders contained with the
	 * directory will be mapped as well.
	 *
	 * @param	string	$source_dir		Path to source
	 * @param	int	$directory_depth	Depth of directories to traverse
	 *						(0 = fully recursive, 1 = current dir, etc)
	 * @param	bool	$hidden			Whether to show hidden files
	 * @return	array
	 */
	function directory_map($source_dir, $directory_depth = 0, $hidden = FALSE)
	{
		if ($fp = @opendir($source_dir))
		{
			$filedata	= array();
			$new_depth	= $directory_depth - 1;
			$source_dir	= rtrim($source_dir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;

			while (FALSE !== ($file = readdir($fp)))
			{
				// Remove '.', '..', and hidden files [optional]
				if ($file === '.' OR $file === '..' OR ($hidden === FALSE && $file[0] === '.'))
				{
					continue;
				}

				@is_dir($source_dir.$file) AND $file .= DIRECTORY_SEPARATOR;

				if (($directory_depth < 1 OR $new_depth > 0) && @is_dir($source_dir.$file))
				{
					$filedata[$file] = directory_map($source_dir.$file, $new_depth, $hidden);
				}
				else
				{
					$filedata[] = $file;
				}
			}

			closedir($fp);
			return $filedata;
		}

		return FALSE;
	}
}

/* End of file directory_helper.php */
/* Location: ./system/helpers/directory_helper.php */