Discuz!x3.4 Uc验证码乱码解决方案

文件：/uc_server/model/base.php
搜索：

1. $this->onlineip = $match[0] ? $match[0] : 'unknown';

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后面加入：

1. $isonlineIP = isset($_COOKIE['onlineipd']) && !empty($_COOKIE['onlineipd']);
   
2. if($isonlineIP){
   
3. $this->onlineip = $_COOKIE['onlineipd'];
   
4. }else{
   
5. setcookie("onlineipd", $this->onlineip, time()+3600, "/");
   
6. }
   
7. unset($isonlineIP);

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