CodeIgniter模板,下面的代码,Session为什么会变化?
defined("BASEPATH") OR exit("No direct script access allowed");
/**
* admin of the content
*/
class Admin extends CI_Controller {
private $signature;
public function __construct()
{
parent::__construct();
$this->load->helper("url_helper");
$this->load->library("session");
//session_start();
}
public function index()
{
/** login each time visit **/
if (isset($_SESSION['user_name'])) {
$this->display("welcom");
} else {
$this->display("login");
}
}
public function login()
{
$_SESSION['user_name'] = $this->input->post("user_name");
$this->display("welcom");
}
private function display($pages)
{
$this->load->view("templates/header", $data);
$this->load->view("admin/$pages", $data);
$this->load->view("templates/footer");
}
}
基于CodeIgniter的模板框架,上面的控制器代码,逻辑是:首次访问时,调用index函数,判断$_SESSION['user_name']没有设置就显示login页面,login页面把数据提交给login函数,并在login函数中设置$_SESSION['user_name'].
现在的问题是:
1、首次访问的session_id()和登录页面提交后(login函数)的session_id()不一致。请问为什么?
2、这样就引发了另一个问题,如果再打开一个标签页(相当于一个窗口吧),重新访问时(此时调用index函数),$_SESSION['user_name']没有设置,必须重新登录。
请教如何解决?
回复讨论(解决方案)
没人遇到过吗?
php.ini 中 session.auto_start = 0
php.ini 中 session.auto_start = 0
应该不是这个原因导致的。我不用CI,自己写的测试代码不存在这个问题。

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