PbootCMS附件上传时报错:上传失败:UNKNOW: Code: 8192; Desc: stripos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior; File: /www/wwwroot/aaa.xxxx.com/core/function/file.php; Line: 176;解决办法:打开/core/function/file.php