Zend Framework常用校验器详解

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本文实例讲述了Zend Framework常用校验器。分享给大家供大家参考,具体如下:

Date日期校验器

代码

PHP;"> isValid($date)){ echo "输入的日期格式:"; echo $date."有效!

"; }else{ echo "输入的日期格式:"; echo $date."无效!

"; } } $date1 = "2008-02-15"; $date2 = "2008-02-31"; $date3 = "02-15-2008"; c_date($date1); c_date($date2); c_date($date3);

结果:

点评:源码解析

_error(self::INVALID); return false; } $this->_setValue($value); if (($this->_format !== null) || ($this->_locale !== null) || is_array($value) || $value instanceof Zend_Date) { require_once 'Zend/Date.PHP'; if (!Zend_Date::isDate($value,$this->_format,$this->_locale)) { if ($this->_checkFormat($value) === false) { $this->_error(self::FALSEFORMAT); } else { $this->_error(self::INVALID_DATE); } return false; } } else { if (!preg_match('/^\d{4}-\d{2}-\d{2}$/',$value)) { $this->_format = 'yyyy-MM-dd'; $this->_error(self::FALSEFORMAT); $this->_format = null; return false; } list($year,$month,$day) = sscanf($value,'%d-%d-%d'); if (!checkdate($month,$day,$year)) { $this->_error(self::INVALID_DATE); return false; } } return true; }

InArray数组包含校验器

如果内容包含在数组中将返回True,否则返回False。

代码

PHP;"> isValid($n)){ echo "指定的内容:"; echo $n.",存在于指定数组中!

"; }else{ echo "指定的内容:"; echo $n.",不存在于指定数组中!

"; } } $city1 = "北京"; $city2 = "重庆"; $city3 = "郑州"; c_array($city1); c_array($city2); c_array($city3);

结果:

内容:北京,存在于指定数组中!

内容:重庆,存在于指定数组中!

内容:郑州,不存在于指定数组中!

Regex正则匹配校验器

通过使用正则表达式,再加上合理使用本校验器,几乎可以实现所有的校验规则。

代码

PHP;"> PHP require_once "Zend/Validate.PHP"; function c_rege($v){ $pattern = array("/ab{2,}/"); if(Zend_Validate::is($v,"Regex",$pattern)){ echo "内容:"; echo $v."

符合定义的正规规则!"; echo "

"; }else{ echo "内容:"; echo $v."

不符合定义的正规规则!"; echo "

"; } } $temp1 = "ab"; $temp2 = "abb"; $temp3 = "abbb"; c_rege($temp1); c_rege($temp2); c_rege($temp3);

结果:

内容:ab

内容:abb

内容:abbb

点评:

toArray(); } if (is_array($pattern)) { if (array_key_exists('pattern',$pattern)) { $pattern = $pattern['pattern']; } else { require_once 'Zend/Validate/Exception.PHP'; throw new Zend_Validate_Exception("Missing option 'pattern'"); } } $this->setPattern($pattern); }

构造函数初始化私有属性

_error(self::INVALID); return false; } $this->_setValue($value); $status = @preg_match($this->_pattern,$value); if (false === $status) { $this->_error(self::ERROROUS); return false; } if (!$status) { $this->_error(self::NOT_MATCH); return false; } return true; }

进行验证工作。

自定义校验器编写

继承Zend_Validate_Interface接口实现用户自定义校验器。

代码案例,功能判断指定数值是否为3的倍数。

接口代码

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_Validate * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id: Interface.PHP 24593 2012-01-05 20:35:02Z matthew $ */ /** * @category Zend * @package Zend_Validate * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ interface Zend_Validate_Interface { /** * Returns true if and only if $value meets the validation requirements * * If $value fails validation,then this method returns false,and * getMessages() will return an array of messages that explain why the * validation Failed. * * @param mixed $value * @return boolean * @throws Zend_Validate_Exception If validation of $value is impossible */ public function isValid($value); /** * Returns an array of messages that explain why the most recent isValid() * call returned false. The array keys are validation failure message identifiers,* and the array values are the corresponding human-readable message strings. * * If isValid() was never called or if the most recent isValid() call * returned true,then this method returns an empty array. * * @return array */ public function getMessages(); }

要实现其中的两个方法,一个是isValid(),一个是getMessages()

实现代码

PHP;"> _messages = array(); $requirement = !($value%3); if(!$requirement){ $this->_messages[] = "'$value'不能被3整除"; return false; } return true; } public function getMessages(){ return $this->_messages; } } function c_n_3($n){ $validator = new MyValidator(); if($validator->isValid($n)){ echo "指定的数值:"; echo $n.",是3的倍数!

"; }else{ echo "指定的数值:"; echo $n.",不是3的倍数!

"; echo "失败的消息为:

"; foreach ($validator->getMessages() as $message) { echo "$message

"; } } } $num1 = 5; $num2 = 6; $num3 = 8; c_n_3($num1); c_n_3($num2); c_n_3($num3);

结果:

点评:

这里通过isValid()方法来设置属性信息,通过getMessages()方法获取错误消息。错误消息是一个数组,通过foreach()方法来遍历读取。

更多关于zend相关内容感兴趣的读者可查看本站专题:《》、《》、《》、《》、《》、《》及《PHP常见数据库操作技巧汇总》

希望本文所述对大家基于Zend Framework框架的PHP程序设计有所帮助。

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