diff options
Diffstat (limited to 'system/helpers/array_helper.php')
| -rw-r--r-- | system/helpers/array_helper.php | 121 |
1 files changed, 54 insertions, 67 deletions
diff --git a/system/helpers/array_helper.php b/system/helpers/array_helper.php index 075a31fdf..ed2fe3c4a 100644 --- a/system/helpers/array_helper.php +++ b/system/helpers/array_helper.php @@ -1,114 +1,101 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * 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 ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @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 */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Array Helpers * * @package CodeIgniter * @subpackage Helpers * @category Helpers - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/helpers/array_helper.html */ // ------------------------------------------------------------------------ -/** - * Element - * - * Lets you determine whether an array index is set and whether it has a value. - * If the element is empty it returns FALSE (or whatever you specify as the default value.) - * - * @access public - * @param string - * @param array - * @param mixed - * @return mixed depends on what the array contains - */ if ( ! function_exists('element')) { - function element($item, $array, $default = FALSE) + /** + * Element + * + * Lets you determine whether an array index is set and whether it has a value. + * If the element is empty it returns NULL (or whatever you specify as the default value.) + * + * @param string + * @param array + * @param mixed + * @return mixed depends on what the array contains + */ + function element($item, $array, $default = NULL) { - if ( ! isset($array[$item]) OR $array[$item] == "") - { - return $default; - } - - return $array[$item]; + return array_key_exists($item, $array) ? $array[$item] : $default; } } // ------------------------------------------------------------------------ -/** - * Random Element - Takes an array as input and returns a random element - * - * @access public - * @param array - * @return mixed depends on what the array contains - */ if ( ! function_exists('random_element')) { + /** + * Random Element - Takes an array as input and returns a random element + * + * @param array + * @return mixed depends on what the array contains + */ function random_element($array) { - if ( ! is_array($array)) - { - return $array; - } - - return $array[array_rand($array)]; + return is_array($array) ? $array[array_rand($array)] : $array; } } // -------------------------------------------------------------------- -/** - * Elements - * - * Returns only the array items specified. Will return a default value if - * it is not set. - * - * @access public - * @param array - * @param array - * @param mixed - * @return mixed depends on what the array contains - */ if ( ! function_exists('elements')) { - function elements($items, $array, $default = FALSE) + /** + * Elements + * + * Returns only the array items specified. Will return a default value if + * it is not set. + * + * @param array + * @param array + * @param mixed + * @return mixed depends on what the array contains + */ + function elements($items, $array, $default = NULL) { $return = array(); - - if ( ! is_array($items)) - { - $items = array($items); - } - + + is_array($items) OR $items = array($items); + foreach ($items as $item) { - if (isset($array[$item])) - { - $return[$item] = $array[$item]; - } - else - { - $return[$item] = $default; - } + $return[$item] = array_key_exists($item, $array) ? $array[$item] : $default; } return $return; |