本文實例講述了Zend Framework常用校驗器。分享給大家參考,具體如下:
Date日期校驗器
代碼:
<?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);
結果:
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!
點評:原始碼解析
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)) { $this->_error(self::INVALID_DATE); return false; } } return true; }
InArray陣列包含校驗器
如果內容包含在陣列中將傳回True,否則傳回False。
代碼:
<?php require_once 'Zend/Validate/InArray.php'; function c_array($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);
結果:
指定的內容:北京,存在於指定數組中!
指定的內容:重慶,存在於指定陣列中!
指定的內容:鄭州,不存在於指定陣列中!
Regex正規符合校驗器
透過使用正規表示式,再加上合理使用本校驗器,幾乎可以實現所有的校驗規則。
代碼:
<?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);
結果:
指定的內容:ab
不符合定義的正規規則!
指定的內容:abb
符合定義的正規規則!
指定的內容:abbb
符合定義的正規規則!
點評:
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); }
建構函式初始化私有屬性,
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; }
進行驗證工作。
自訂校驗器編寫
繼承Zend_Validate_Interface介面實作使用者自訂校驗器。
程式碼案例,功能判斷指定數值是否為3的倍數。
介面程式碼:
<?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(); }
要實現其中的兩個方法,一個是isValid(),一個是getMessages()
實作程式碼:
<?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);
結果:
指定的數值:
rrreee結果:
指定的數值:
3的數值! 失敗的消息是:'5'不能被3整除指定的數值:6,是3的倍數! 指定的數值:8,不是3的倍數! 失敗的訊息為:'8'不能被3整除點評:這裡透過isValid()方法來設定屬性訊息,透過getMessages()方法來取得錯誤訊息。錯誤訊息是一個數組,透過foreach()方法來遍歷讀取。 🎜🎜希望本文所述對大家基於Zend Framework框架的PHP程式設計有所幫助。 🎜🎜更多Zend Framework常用校驗器詳解相關文章請關注PHP中文網! 🎜