php教程

超轻量级php框架startmvc

Zend Framework常用校验器详解

更新时间:2020-03-16 12:52:57 作者:startmvc
本文实例讲述了ZendFramework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

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
require_once 'Zend/Validate/Date.php';
function c_date($date){
 $validator = new Zend_Validate_Date();
 if($validator->isValid($date)){
 echo "输入的日期格式:";
 echo $date."有效!<p>";
 }else{
 echo "输入的日期格式:";
 echo $date."无效!<p>";
 }
}
$date1 = "2008-02-15";
$date2 = "2008-02-31";
$date3 = "02-15-2008";
c_date($date1);
c_date($date2);
c_date($date3);

结果:

输入的日期格式:2008-02-15有效!

输入的日期格式:2008-02-31无效!

输入的日期格式:02-15-2008无效!

点评:源码解析


public function isValid($value)
{
 if (!is_string($value) && !is_int($value) && !is_float($value) &&
 !is_array($value) && !($value instanceof Zend_Date)) {
 $this->_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
require_once 'Zend/Validate/InArray.php';
function c_array($n){
 $temp = array("北京","上海","天津","重庆");
 $validator = new Zend_Validate_InArray($temp);
 if($validator->isValid($n)){
 echo "指定的内容:";
 echo $n.",存在于指定数组中!<p>";
 }else{
 echo "指定的内容:";
 echo $n.",不存在于指定数组中!<p>";
 }
}
$city1 = "北京";
$city2 = "重庆";
$city3 = "郑州";
c_array($city1);
c_array($city2);
c_array($city3);

结果:

指定的内容:北京,存在于指定数组中!

指定的内容:重庆,存在于指定数组中!

指定的内容: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
require_once "Zend/Validate.php";
function c_rege($v){
 $pattern = array("/ab{2,}/");
 if(Zend_Validate::is($v,"Regex",$pattern)){
 echo "<font color=\"#006600\">指定的内容:";
 echo $v."<p>符合定义的正规规则!</font>";
 echo "<p>";
 }else{
 echo "<font color=\"#ff0000\">指定的内容:";
 echo $v."<p>不符合定义的正规规则!</font>";
 echo "<p>";
 }
}
$temp1 = "ab";
$temp2 = "abb";
$temp3 = "abbb";
c_rege($temp1);
c_rege($temp2);
c_rege($temp3);

结果:

指定的内容:ab

不符合定义的正规规则!

指定的内容:abb

符合定义的正规规则!

指定的内容:abbb

符合定义的正规规则!

点评:


public function __construct($pattern)
{
 if ($pattern instanceof Zend_Config) {
 $pattern = $pattern->toArray();
 }
 if (is_array($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,


public function isValid($value)
{
 if (!is_string($value) && !is_int($value) && !is_float($value)) {
 $this->_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
/**
 * 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
require_once "Zend/Validate/Interface.php";
class MyValidator implements Zend_Validate_Interface{
 protected $_messages = array();
 public function isValid($value){
 $this->_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!<p>";
 }else{
 echo "指定的数值:";
 echo $n.",不是3的倍数!<p>";
 echo "失败的消息为:<p>";
 foreach ($validator->getMessages() as $message) {
 echo "$message<p>";
 }
 }
}
$num1 = 5;
$num2 = 6;
$num3 = 8;
c_n_3($num1);
c_n_3($num2);
c_n_3($num3);

结果:

指定的数值:5,不是3的倍数!

失败的消息为:

'5'不能被3整除

指定的数值:6,是3的倍数!

指定的数值:8,不是3的倍数!

失败的消息为:

'8'不能被3整除

点评:

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

Zend Framework 校验器