value * * @link http://www.sitemaps.org/protocol.php Sitemaps XML format * * @category Zend * @package Zend_Validate * @subpackage Sitemap * @copyright Copyright (c) 2005-2015 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 = 'sitemapPriorityNotValid'; const INVALID = 'sitemapPriorityInvalid'; /** * Validation failure message template definitions * * @var array */ protected $_messageTemplates = array( self::NOT_VALID => "'%value%' is not a valid sitemap priority", self::INVALID => "Invalid type given. Numeric string, integer or float expected", ); /** * Validates if a string is valid as a sitemap priority * * @link http://www.sitemaps.org/protocol.php#prioritydef * * @param string $value value to validate * @return boolean */ public function isValid($value) { if (!is_numeric($value)) { $this->_error(self::INVALID); return false; } $this->_setValue($value); $value = (float) $value; if ($value < 0 || $value > 1) { $this->_error(self::NOT_VALID); return false; } return true; } }