环境监测
服务器操作系统: .................................................................{$sys_info.os}
Web 服务器: .................................................................{$sys_info.web_server}
PHP 版本: .................................................................{$sys_info.php_ver}
MySQL 版本: .................................................................{$sys_info.mysql_ver}
Socket 支持: .................................................................{$sys_info.socket}
时区设置: .................................................................{$sys_info.timezone}
GD 版本: .................................................................{$sys_info.gd}
Zlib 支持: .................................................................{$sys_info.zlib}
目录权限检测
{$v.dir} .................................................................{$v.if_write}