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<?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_Validate
* @subpackage Sitemap
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Priority.php 16971 2009-07-22 18:05:45Z mikaelkael $
*/
/**
* @see Zend_Validate_Abstract
*/
require_once 'Zend/Validate/Abstract.php';
/**
* Validates whether a given value is valid as a sitemap <priority> value
*
* @link http://www.sitemaps.org/protocol.php Sitemaps XML format
*
* @category Zend
* @package Zend_Validate
* @subpackage Sitemap
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_Sitemap_Priority extends Zend_Validate_Abstract
{
/**
* Validation key for not valid
*
*/
const NOT_VALID = 'invalidSitemapPriority';
/**
* Validation failure message template definitions
*
* @var array
*/
protected $_messageTemplates = array(
self::NOT_VALID => "'%value%' is not a valid sitemap priority",
);
/**
* Validates if a string is valid as a sitemap priority
*
* @link http://www.sitemaps.org/protocol.php#prioritydef <priority>
*
* @param string $value value to validate
* @return boolean
*/
public function isValid($value)
{
$this->_setValue($value);
if (!is_numeric($value)) {
return false;
}
$value = (float)$value;
return $value >= 0 && $value <= 1;
}
}
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