Zend Framework常用校验器详解
author:一佰互联 2019-04-26   click:134

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:

<?phprequire_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:

<?phprequire_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:

<?phprequire_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:

<?phprequire_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。

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