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. * * @categoryZend * @packageZend_Validate * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) * @licensehttp://framework.zend.com/license/new-bsd New BSD License * @version$Id: Interface.php 24593 2012-01-05 20:35:02Z matthew $ *//** * @categoryZend * @packageZend_Validate * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) * @licensehttp://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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