user_guide_src/source/helpers/directory_helper.rst


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################
Directory Helper
################

The Directory Helper file contains functions that assist in working with
directories.

.. contents:: Page Contents

Loading this Helper
===================

This helper is loaded using the following code

::

	$this->load->helper('directory');

The following functions are available:

directory_map()
===============

This function reads the directory path specified in the first parameter
and builds an array representation of it and all its contained files.
	
.. php:method:: directory_map($source_dir[, $directory_depth = 0[, $hidden = FALSE]])

	:param string	$source_dir: path to the ource directory
	:param integer	$directory_depth: depth of directories to traverse (0 =
		fully recursive, 1 = current dir, etc)
	:param boolean	$hidden: whether to include hidden directories
	
Examples::

	$map = directory_map('./mydirectory/');

.. note:: Paths are almost always relative to your main index.php file.


Sub-folders contained within the directory will be mapped as well. If
you wish to control the recursion depth, you can do so using the second
parameter (integer). A depth of 1 will only map the top level directory::

	$map = directory_map('./mydirectory/', 1);

By default, hidden files will not be included in the returned array. To
override this behavior, you may set a third parameter to true (boolean)::

	$map = directory_map('./mydirectory/', FALSE, TRUE);

Each folder name will be an array index, while its contained files will
be numerically indexed. Here is an example of a typical array::

	Array (    
		[libraries] => Array    
			(        
				[0] => benchmark.html        
				[1] => config.html        
				[database] => Array
					(              
						[0] => query_builder.html              
						[1] => binds.html              
						[2] => configuration.html
						[3] => connecting.html              
						[4] => examples.html              
						[5] => fields.html              
						[6] => index.html
						[7] => queries.html
					)        
				[2] => email.html        
				[3] => file_uploading.html        
				[4] => image_lib.html        
				[5] => input.html        
				[6] => language.html        
				[7] => loader.html        
				[8] => pagination.html        
				[9] => uri.html
			)