101 lines
2.6 KiB
PHP
101 lines
2.6 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Validate
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Digits.php 8064 2008-02-16 10:58:39Z thomas $
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*/
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/**
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* @see Zend_Validate_Abstract
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*/
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require_once 'Zend/Validate/Abstract.php';
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/**
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* @category Zend
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* @package Zend_Validate
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Validate_Digits extends Zend_Validate_Abstract
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{
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/**
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* Validation failure message key for when the value contains non-digit characters
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*/
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const NOT_DIGITS = 'notDigits';
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/**
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* Validation failure message key for when the value is an empty string
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*/
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const STRING_EMPTY = 'stringEmpty';
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/**
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* Digits filter used for validation
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*
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* @var Zend_Filter_Digits
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*/
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protected static $_filter = null;
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/**
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* Validation failure message template definitions
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*
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* @var array
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*/
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protected $_messageTemplates = array(
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self::NOT_DIGITS => "'%value%' contains not only digit characters",
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self::STRING_EMPTY => "'%value%' is an empty string"
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);
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/**
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* Defined by Zend_Validate_Interface
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*
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* Returns true if and only if $value only contains digit characters
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*
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* @param string $value
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* @return boolean
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*/
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public function isValid($value)
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{
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$valueString = (string) $value;
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$this->_setValue($valueString);
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if ('' === $valueString) {
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$this->_error(self::STRING_EMPTY);
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return false;
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}
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if (null === self::$_filter) {
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/**
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* @see Zend_Filter_Digits
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*/
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require_once 'Zend/Filter/Digits.php';
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self::$_filter = new Zend_Filter_Digits();
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}
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if ($valueString !== self::$_filter->filter($valueString)) {
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$this->_error(self::NOT_DIGITS);
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return false;
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}
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return true;
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}
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}
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