本文實(shí)例講述了Zend Framework常用校驗(yàn)器。分享給大家供大家參考,具體如下:
Date日期校驗(yàn)器
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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 "輸入的日期格式:" ; echo $date . "有效!<p>" ; } else { echo "輸入的日期格式:" ; echo $date . "無效!<p>" ; } } $date1 = "2008-02-15" ; $date2 = "2008-02-31" ; $date3 = "02-15-2008" ; c_date( $date1 ); c_date( $date2 ); c_date( $date3 ); |
結(jié)果:
輸入的日期格式:2008-02-15有效!
輸入的日期格式:2008-02-31無效!
輸入的日期格式:02-15-2008無效!
點(diǎn)評(píng):源碼解析
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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; } |
InArray數(shù)組包含校驗(yàn)器
如果內(nèi)容包含在數(shù)組中將返回True,否則返回False。
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<?php require_once 'Zend/Validate/InArray.php' ; function c_array( $n ){ $temp = array ( "北京" , "上海" , "天津" , "重慶" ); $validator = new Zend_Validate_InArray( $temp ); if ( $validator ->isValid( $n )){ echo "指定的內(nèi)容:" ; echo $n . ",存在于指定數(shù)組中!<p>" ; } else { echo "指定的內(nèi)容:" ; echo $n . ",不存在于指定數(shù)組中!<p>" ; } } $city1 = "北京" ; $city2 = "重慶" ; $city3 = "鄭州" ; c_array( $city1 ); c_array( $city2 ); c_array( $city3 ); |
結(jié)果:
指定的內(nèi)容:北京,存在于指定數(shù)組中!
指定的內(nèi)容:重慶,存在于指定數(shù)組中!
指定的內(nèi)容:鄭州,不存在于指定數(shù)組中!
Regex正則匹配校驗(yàn)器
通過使用正則表達(dá)式,再加上合理使用本校驗(yàn)器,幾乎可以實(shí)現(xiàn)所有的校驗(yàn)規(guī)則。
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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\">指定的內(nèi)容:" ; echo $v . "<p>符合定義的正規(guī)規(guī)則!</font>" ; echo "<p>" ; } else { echo "<font color=\"#ff0000\">指定的內(nèi)容:" ; echo $v . "<p>不符合定義的正規(guī)規(guī)則!</font>" ; echo "<p>" ; } } $temp1 = "ab" ; $temp2 = "abb" ; $temp3 = "abbb" ; c_rege( $temp1 ); c_rege( $temp2 ); c_rege( $temp3 ); |
結(jié)果:
指定的內(nèi)容:ab
不符合定義的正規(guī)規(guī)則!
指定的內(nèi)容:abb
符合定義的正規(guī)規(guī)則!
指定的內(nèi)容:abbb
符合定義的正規(guī)規(guī)則!
點(diǎn)評(píng):
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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 ); } |
構(gòu)造函數(shù)初始化私有屬性,
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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; } |
進(jìn)行驗(yàn)證工作。
自定義校驗(yàn)器編寫
繼承Zend_Validate_Interface接口實(shí)現(xiàn)用戶自定義校驗(yàn)器。
代碼案例,功能判斷指定數(shù)值是否為3的倍數(shù)。
接口代碼:
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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 [email protected] 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(); } |
要實(shí)現(xiàn)其中的兩個(gè)方法,一個(gè)是isValid(),一個(gè)是getMessages()
實(shí)現(xiàn)代碼:
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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 "指定的數(shù)值:" ; echo $n . ",是3的倍數(shù)!<p>" ; } else { echo "指定的數(shù)值:" ; echo $n . ",不是3的倍數(shù)!<p>" ; echo "失敗的消息為:<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 ); |
結(jié)果:
指定的數(shù)值:5,不是3的倍數(shù)!
失敗的消息為:
'5'不能被3整除
指定的數(shù)值:6,是3的倍數(shù)!
指定的數(shù)值:8,不是3的倍數(shù)!
失敗的消息為:
'8'不能被3整除
點(diǎn)評(píng):
這里通過isValid()方法來設(shè)置屬性信息,通過getMessages()方法來獲取錯(cuò)誤消息。錯(cuò)誤消息是一個(gè)數(shù)組,通過foreach()方法來遍歷讀取。
希望本文所述對(duì)大家基于Zend Framework框架的PHP程序設(shè)計(jì)有所幫助。