编写PHP正则表达式常用工具类

最新推荐文章于 2025-03-25 09:05:01 发布

转载最新推荐文章于 2025-03-25 09:05:01 发布 · 130 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/xiaogou/p/8920905.html

文章标签：

#php #数据库

本文介绍了一个PHP正则表达式工具类的实现，包括常用正则表达式的封装及应用场景示例，如验证邮箱格式、手机号等。

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本案例共有上述三个文件

首先展示核心文件regexTool.class.php ，该文件即为此次编写的正则表达式工具类

代码如下：

<?php
//php常用正则表达式工具类
class regexTool {
    
    private $validate = array(//常用的匹配规则
                'require'   =>  '/.+/',
                'email'     =>  '/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/',
                'url'       =>  '/^http(s?):\/\/(?:[A-za-z0-9-]+\.)+[A-za-z]{2,4}(?:[\/\?#][\/=\?%\-&~`@[\]\':+!\.#\w]*)?$/',
                'currency'  =>  '/^\d+(\.\d+)?$/',
                'number'    =>  '/^\d+$/',
                'zip'       =>  '/^\d{6}$/',
                'integer'   =>  '/^[-\+]?\d+$/',
                'double'    =>  '/^[-\+]?\d+(\.\d+)?$/',
                'english'   =>  '/^[A-Za-z]+$/',
                'qq'        =>    '/^\d{5,11}$/',
                'mobile'    =>    '/^1(3|4|5|7|8)\d{9}$/',
            );
    private $returnMatchResult = false;//用于切换匹配的结果用，有2中结果可供选择，bool值或匹配到的目标字符串
    private $fixMode = null;//修正模式
    private $matches = array();//匹配的结果数组
    private $isMatch = false;//验证的结果
    
    public function __construct($returnMatchResult = false, $fixMode = null) {//构造方法
        $this->returnMatchResult = $returnMatchResult;
        $this->fixMode = $fixMode;
    }
    //$pattern为验证规则，$subject为输入字符串。 
    private function regex($pattern, $subject) {
        if(array_key_exists(strtolower($pattern), $this->validate))
            $pattern = $this->validate[$pattern].$this->fixMode;
        $this->returnMatchResult ?
            preg_match_all($pattern, $subject, $this->matches) :
            $this->isMatch = preg_match($pattern, $subject) === 1;
        return $this->getRegexResult();
    }
    
    private function getRegexResult() {//用于返回匹配的结果有2种情况
        if($this->returnMatchResult) {
            return $this->matches;
        } else {
            return $this->isMatch;
        }
    }
    
    public function toggleReturnType($bool = null) {//切换返回的类型
        if(empty($bool)) {
            $this->returnMatchResult = !$this->returnMatchResult;
        } else {
            $this->returnMatchResult = is_bool($bool) ? $bool : (bool)$bool;
        }
    }
    
    public function setFixMode($fixMode) {
        $this->fixMode = $fixMode;
    }
    
    public function noEmpty($str) {
        return $this->regex('require', $str);
    }
    
    public function isEmail($email) {
        return $this->regex('email', $email);
    }
    
    public function isMobile($mobile) {
        return $this->regex('mobile', $mobile);
    }
    
    public function check($pattern, $subject) {
        return $this->regex($pattern, $subject);
    }
    
    //......
    
}

接着展示reg.html文件的代码如下：

<html>
    <head>
        <title>用户注册</title>
        <meta charset="utf-8">
    </head>
    <body>
        <form action="regCheck.php" method="post">
            用户名 <input type="text" name="username" id="username" value="" /><br /><br />
            email <input type="text" name="email" id="email" value="" /><br /><br />
            手机号 <input type="text" name="mobile" id="mobile" value="" /><br /><br />
            自定义<input type="text" name="check" id="check" value="" /><br/><br/>
            <input type="submit" value="注册"/>
        </form>
    </body>
</html>

接着展示regCheck.php的代码，如下：

<?php
header("Content-Type:text/html;charset=utf-8;");//header头声明编码方式为utf-8
require_once 'regexTool.class.php';

$regex = new regexTool();
if(!$regex->noEmpty($_POST['username'])) exit('用户名是必须填写的！');
if(!$regex->isEmail($_POST['email'])) exit('email格式错误!');
if(!$regex->isMobile($_POST['mobile'])) exit('手机号格式错误!');
if(!$regex->check("/[abcd]123/",$_POST['check'])) exit('特殊验证格式不符合');

//数据库写入

/*
 * @name : show
 * @description : output debug
 * @param $var : input data
 * @return void
 */
function show($var = null, $isdump = false) {
    $func = $isdump ? 'var_dump' : 'print_r';
    if(empty($var)) {
        echo 'null';
    } elseif(is_array($var) || is_object($var)) {
        //array,object
        echo '<pre>';
        $func($var);
        echo '</pre>';
    } else {
        //string,int,float...
        $func($var);
    }
}

运行reg.html文件，程序运行界面如下;

如果什么都不填写就点击注册会收到如下提示：

<?php//php常用正则表达式工具类class regexTool {private $validate = array(//常用的匹配规则'require' => '/.+/','email' => '/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/','url' => '/^http(s?):\/\/(?:[A-za-z0-9-]+\.)+[A-za-z]{2,4}(?:[\/\?#][\/=\?%\-&~`@[\]\':+!\.#\w]*)?$/','currency' => '/^\d+(\.\d+)?$/','number' => '/^\d+$/','zip' => '/^\d{6}$/','integer' => '/^[-\+]?\d+$/','double' => '/^[-\+]?\d+(\.\d+)?$/','english' => '/^[A-Za-z]+$/','qq'=>'/^\d{5,11}$/','mobile'=>'/^1(3|4|5|7|8)\d{9}$/',);private $returnMatchResult = false;//用于切换匹配的结果用，有2中结果可供选择，bool值或匹配到的目标字符串private $fixMode = null;//修正模式private $matches = array();//匹配的结果数组private $isMatch = false;//验证的结果public function __construct($returnMatchResult = false, $fixMode = null) {//构造方法$this->returnMatchResult = $returnMatchResult;$this->fixMode = $fixMode;}//$pattern为验证规则，$subject为输入字符串。 private function regex($pattern, $subject) {if(array_key_exists(strtolower($pattern), $this->validate))$pattern = $this->validate[$pattern].$this->fixMode;$this->returnMatchResult ?preg_match_all($pattern, $subject, $this->matches) :$this->isMatch = preg_match($pattern, $subject) === 1;return $this->getRegexResult();}private function getRegexResult() {//用于返回匹配的结果有2种情况if($this->returnMatchResult) {return $this->matches;} else {return $this->isMatch;}}public function toggleReturnType($bool = null) {//切换返回的类型if(empty($bool)) {$this->returnMatchResult = !$this->returnMatchResult;} else {$this->returnMatchResult = is_bool($bool) ? $bool : (bool)$bool;}}public function setFixMode($fixMode) {$this->fixMode = $fixMode;}public function noEmpty($str) {return $this->regex('require', $str);}public function isEmail($email) {return $this->regex('email', $email);}public function isMobile($mobile) {return $this->regex('mobile', $mobile);}public function check($pattern, $subject) {return $this->regex($pattern, $subject);}//......}

转载于:https://www.cnblogs.com/xiaogou/p/8920905.html