77 lines
2.0 KiB
PHP
77 lines
2.0 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* 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 license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Filter
|
|
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id: StringToLower.php 8064 2008-02-16 10:58:39Z thomas $
|
|
*/
|
|
|
|
|
|
/**
|
|
* @see Zend_Filter_Interface
|
|
*/
|
|
require_once 'Zend/Filter/Interface.php';
|
|
|
|
|
|
/**
|
|
* @category Zend
|
|
* @package Zend_Filter
|
|
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
class Zend_Filter_StringToLower implements Zend_Filter_Interface
|
|
{
|
|
/**
|
|
* Encoding for the input string
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_encoding = null;
|
|
|
|
/**
|
|
* Set the input encoding for the given string
|
|
*
|
|
* @param string $encoding
|
|
* @throws Zend_Filter_Exception
|
|
*/
|
|
public function setEncoding($encoding = null)
|
|
{
|
|
if (!function_exists('mb_strtolower')) {
|
|
require_once 'Zend/Filter/Exception.php';
|
|
throw new Zend_Filter_Exception('mbstring is required for this feature');
|
|
}
|
|
$this->_encoding = $encoding;
|
|
}
|
|
|
|
/**
|
|
* Defined by Zend_Filter_Interface
|
|
*
|
|
* Returns the string $value, converting characters to lowercase as necessary
|
|
*
|
|
* @param string $value
|
|
* @return string
|
|
*/
|
|
public function filter($value)
|
|
{
|
|
if ($this->_encoding) {
|
|
return mb_strtolower((string) $value, $this->_encoding);
|
|
}
|
|
|
|
return strtolower((string) $value);
|
|
}
|
|
}
|