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PHP汉字验证码的实现

<?php    
/*    
* 文件:chinesechar.php    
* 作用:汉字数据储存    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/  
* 特注:版权所有转载注明出处!有付出才会有收获!
*/    
$ChineseChar = array("人","出","来","友","学","孝","仁","义","礼","廉","忠","国","中","易","白","者","火 ","土","金","木","雷","风","龙","虎","天","地",   "生","晕","菜","鸟","田","三","百","钱","福 ","爱","情","兽","虫","鱼","九","网","新","度","哎","唉","啊","哦","仪","老","少","日",   "月 ","星");    
?>    

<?php    
/*    
* 文件:check.php    
* 作用:验证    
* 作者:PHP实战群:33918040 - 鱼尾唯一    
* 网址:http://bbs.ailf.cn/ http://www.fishwei.com/   
* 特注:版权所有转载注明出处!有付出才会有收获!
*/    
session_start();    
$errorMSG = '''';    
//验证用户输入是否和验证码一致    
if(!is_null($_POST[''check'']))    
{    
        if (strcasecmp($_SESSION[''code''],$_POST[''code''])==0)    
            $errorMSG = "<p style="font-size:12px补充:Php教程,Php常用代码

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