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:
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<?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 );
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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
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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;
}
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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:
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<?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 );
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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:
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<?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 );
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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:
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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 );
}
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构造函数初始化私有属性,
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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;
}
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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:
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<?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();
}
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要实现其中的两个方法,一个是isValid(),一个是getMessages()
实现代码:
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<?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 );
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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。
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。