setcookie("user_id",$user_info['user_id'],86500);
setcookie("username",$user_info['username'],86500);
setcookie("password",$user_info['password'],86500);
//echo$_COOKIE['username'];

$this->input->set_cookie("username",$user_info['username'],60);
$this->input->set_cookie("password",$user_info['password'],60);
$this->input->set_cookie("user_id",$user_info['user_id'],60);
//echo$this->input->cookie("password");//适用于控制器
//echo$this->input->cookie("username");//适用于控制器
//echo$_COOKIE['username'];//在模型类中可以通过这种方式获取cookie值
//echo$_COOKIE['password'];//在模型类中可以通过这种方式获取cookie值

set_cookie("username",$user_info['username'],60);
set_cookie("password",$user_info['password'],60);
set_cookie("user_id",$user_info['user_id'],60);
//echoget_cookie("username");