119 行
2.5 KiB
PHP
119 行
2.5 KiB
PHP
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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP 5.1.6 or newer
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*
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* @package CodeIgniter
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* @author ExpressionEngine Dev Team
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* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
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* @license http://codeigniter.com/user_guide/license.html
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* @link http://codeigniter.com
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* @since Version 1.0
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* @filesource
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*/
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// ------------------------------------------------------------------------
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/**
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* CodeIgniter Array Helpers
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*
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* @package CodeIgniter
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* @subpackage Helpers
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* @category Helpers
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* @author ExpressionEngine Dev Team
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* @link http://codeigniter.com/user_guide/helpers/array_helper.html
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*/
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// ------------------------------------------------------------------------
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/**
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* Element
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*
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* Lets you determine whether an array index is set and whether it has a value.
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* If the element is empty it returns FALSE (or whatever you specify as the default value.)
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*
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* @access public
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* @param string
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* @param array
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* @param mixed
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* @return mixed depends on what the array contains
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*/
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if ( ! function_exists('element'))
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{
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function element($item, $array, $default = FALSE)
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{
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if ( ! isset($array[$item]) OR $array[$item] == "")
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{
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return $default;
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}
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return $array[$item];
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Random Element - Takes an array as input and returns a random element
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*
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* @access public
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* @param array
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* @return mixed depends on what the array contains
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*/
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if ( ! function_exists('random_element'))
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{
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function random_element($array)
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{
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if ( ! is_array($array))
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{
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return $array;
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}
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return $array[array_rand($array)];
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}
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}
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// --------------------------------------------------------------------
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/**
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* Elements
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*
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* Returns only the array items specified. Will return a default value if
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* it is not set.
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*
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* @access public
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* @param array
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* @param array
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* @param mixed
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* @return mixed depends on what the array contains
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*/
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if ( ! function_exists('elements'))
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{
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function elements($items, $array, $default = FALSE)
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{
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$return = array();
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if ( ! is_array($items))
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{
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$items = array($items);
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}
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foreach ($items as $item)
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{
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if (isset($array[$item]))
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{
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$return[$item] = $array[$item];
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}
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else
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{
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$return[$item] = $default;
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}
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}
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return $return;
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}
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}
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/* End of file array_helper.php */
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/* Location: ./system/helpers/array_helper.php */
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