Discuz!x3.4 Uc验证码乱码解决方案
文件：/uc_server/model/base.php
搜索：
$this->onlineip = $match ? $match : 'unknown';
后面加入：
$isonlineIP = isset($_COOKIE['onlineipd']) && !empty($_COOKIE['onlineipd']);
if($isonlineIP){
$this->onlineip = $_COOKIE['onlineipd'];
}else{
setcookie("onlineipd", $this->onlineip, time()+3600, "/");
}
unset($isonlineIP);
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