thinkphp获取当前服务器系统环境

   $user_agent = request()->header('user-agent');if (false !== stripos($user_agent, 'win')) {$user_os = 'Windows';} elseif (false !== stripos($user_agent, 'mac')) {$user_os = 'MAC';} elseif (false !== stripos($user_agent, 'linux')) {$user_os = 'Linux';} elseif (false !== stripos($user_agent, 'unix')) {$user_os = 'Unix';} elseif (false !== stripos($user_agent, 'bsd')) {$user_os = 'BSD';} elseif (false !== stripos($user_agent, 'iPad') || false !== stripos($user_agent, 'iPhone')) {$user_os = 'IOS';} elseif (false !== stripos($user_agent, 'android')) {$user_os = 'Android';} else {$user_os = 'Other';}return   $user_os ;