场景：个别情况因为服务器或其他原因不能获取IP，会显示127.0.0.1 这时可以改动代码解决此类问题

处理文件：\app\common.php

functionwritelog($uid,$username,$description,$status){$data['admin_id']=$uid;$data['admin_name']=$username;$data['description']=$description;$data['status']=$status;$data['ip']=request()->ip();$data['add_time']=time();$log=db('Log')->insert($data);}

替换成

functiondefip(){//strcasecmp比较两个字符，不区分大小写。返回0，>0，<0。if(getenv('HTTP_CLIENT_IP')&&strcasecmp(getenv('HTTP_CLIENT_IP'),'unknown')){$ip=getenv('HTTP_CLIENT_IP');}elseif(getenv('HTTP_X_FORWARDED_FOR')&&strcasecmp(getenv('HTTP_X_FORWARDED_FOR'),'unknown')){$ip=getenv('HTTP_X_FORWARDED_FOR');}elseif(getenv('REMOTE_ADDR')&&strcasecmp(getenv('REMOTE_ADDR'),'unknown')){$ip=getenv('REMOTE_ADDR');}elseif(isset($_SERVER['REMOTE_ADDR'])&&$_SERVER['REMOTE_ADDR']&&strcasecmp($_SERVER['REMOTE_ADDR'],'unknown')){$ip=$_SERVER['REMOTE_ADDR'];}$res=preg_match('/[\d\.]{7,15}/',$ip,$matches)?$matches[0]:'';return$res;}functionwritelog($uid,$username,$description,$status){$data['admin_id']=$uid;$data['admin_name']=$username;$data['description']=$description;$data['status']=$status;$data['ip']=defip();//request()->ip();$data['add_time']=time();$log=db('Log')->insert($data);}

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