119 行
无行尾
2.5 KiB
PHP
119 行
无行尾
2.5 KiB
PHP
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
|
|
/**
|
|
* CodeIgniter
|
|
*
|
|
* An open source application development framework for PHP 5.1.6 or newer
|
|
*
|
|
* @package CodeIgniter
|
|
* @author ExpressionEngine Dev Team
|
|
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
|
|
* @license http://codeigniter.com/user_guide/license.html
|
|
* @link http://codeigniter.com
|
|
* @since Version 1.0
|
|
* @filesource
|
|
*/
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* CodeIgniter Array Helpers
|
|
*
|
|
* @package CodeIgniter
|
|
* @subpackage Helpers
|
|
* @category Helpers
|
|
* @author ExpressionEngine 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, $default = FALSE)
|
|
{
|
|
if ( ! isset($array[$item]) OR $array[$item] == "")
|
|
{
|
|
return $default;
|
|
}
|
|
|
|
return $array[$item];
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* 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'))
|
|
{
|
|
function random_element($array)
|
|
{
|
|
if ( ! is_array($array))
|
|
{
|
|
return $array;
|
|
}
|
|
|
|
return $array[array_rand($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)
|
|
{
|
|
$return = array();
|
|
|
|
if ( ! is_array($items))
|
|
{
|
|
$items = array($items);
|
|
}
|
|
|
|
foreach ($items as $item)
|
|
{
|
|
if (isset($array[$item]))
|
|
{
|
|
$return[$item] = $array[$item];
|
|
}
|
|
else
|
|
{
|
|
$return[$item] = $default;
|
|
}
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
}
|
|
|
|
/* End of file array_helper.php */
|
|
/* Location: ./system/helpers/array_helper.php */ |