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<?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 - 2012, 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 Array Helpers
*
* @package CodeIgniter
* @subpackage Helpers
* @category Helpers
* @author EllisLab Dev Team
* @link http://codeigniter.com/user_guide/helpers/array_helper.html
*/
// ------------------------------------------------------------------------
if ( ! function_exists('element'))
{
/**
* Element
*
* Lets you determine whether an array index is set and whether it has a value.
* If the element is empty it returns NULL (or whatever you specify as the default value.)
*
* @param string
* @param array
* @param mixed
* @return mixed depends on what the array contains
*/
function element($item, $array, $default = NULL)
{
return array_key_exists($item, $array) ? $array[$item] : $default;
}
}
// ------------------------------------------------------------------------
if ( ! function_exists('random_element'))
{
/**
* Random Element - Takes an array as input and returns a random element
*
* @param array
* @return mixed depends on what the array contains
*/
function random_element($array)
{
return is_array($array) ? $array[array_rand($array)] : $array;
}
}
// --------------------------------------------------------------------
if ( ! function_exists('elements'))
{
/**
* Elements
*
* Returns only the array items specified. Will return a default value if
* it is not set.
*
* @param array
* @param array
* @param mixed
* @return mixed depends on what the array contains
*/
function elements($items, $array, $default = NULL)
{
$return = array();
is_array($items) OR $items = array($items);
foreach ($items as $item)
{
$return[$item] = array_key_exists($item, $array) ? $array[$item] : $default;
}
return $return;
}
}
/* End of file array_helper.php */
/* Location: ./system/helpers/array_helper.php */
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