<?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 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 */