Php 登录后未设置会话[Codeigniter]

当我登录到该站点时，会话未设置。早些时候它工作得很好，但不知怎么的，现在不工作了

我的控制器代码：

public function login_subadmin()
    {
        $email=$this->input->post('Email');
        $password=sha1($this->input->post('Password'));
        $this->sb->login_sub_admin($email,$password);

    }

public function login_sub_admin($email,$password)
    {
        $this->load->library('session');
        $query=$this->db->where(['Email'=>$email,'Password'=>$password])->get('dc_user');
         $res=$query->row();
                $this->session->set_userdata('user',$res->Employee_Name);
        if(!isset($this->session->userdata['user']))
        {
            $this->session->set_userdata('user',"No session");
        }
                redirect(base_url());

    }

<?php
if(!isset($this->session->userdata['user']))
{
                         $this->session->set_userdata('user',"No session");?>
    <!-- Login -->
    <li class="nav-item">
        <a href="sub_Admin" class="nav-item-child radius-3">
            Login
        </a>

    </li>
    <!-- End Login -->

<?php }
if (isset($this->session->userdata['user'])) {$user=$this->session->userdata['user'];?>
    <!-- Home -->
    <li class="nav-item">
        <a href="#" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
            &nbsp;<?php echo $user;?>&nbsp;<img style="width: 30px; height: 30px;" class="image-circle" src="<?php echo base_url(); ?>profileimages/<?php if (isset($this->session->userdata['profile'])) {

                echo $this->session->userdata['profile'];


            }?>" alt="">

我的型号代码：

public function login_subadmin()
    {
        $email=$this->input->post('Email');
        $password=sha1($this->input->post('Password'));
        $this->sb->login_sub_admin($email,$password);

    }

public function login_sub_admin($email,$password)
    {
        $this->load->library('session');
        $query=$this->db->where(['Email'=>$email,'Password'=>$password])->get('dc_user');
         $res=$query->row();
                $this->session->set_userdata('user',$res->Employee_Name);
        if(!isset($this->session->userdata['user']))
        {
            $this->session->set_userdata('user',"No session");
        }
                redirect(base_url());

    }

<?php
if(!isset($this->session->userdata['user']))
{
                         $this->session->set_userdata('user',"No session");?>
    <!-- Login -->
    <li class="nav-item">
        <a href="sub_Admin" class="nav-item-child radius-3">
            Login
        </a>

    </li>
    <!-- End Login -->

<?php }
if (isset($this->session->userdata['user'])) {$user=$this->session->userdata['user'];?>
    <!-- Home -->
    <li class="nav-item">
        <a href="#" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
            &nbsp;<?php echo $user;?>&nbsp;<img style="width: 30px; height: 30px;" class="image-circle" src="<?php echo base_url(); ?>profileimages/<?php if (isset($this->session->userdata['profile'])) {

                echo $this->session->userdata['profile'];


            }?>" alt="">

我的视图导航：

public function login_subadmin()
    {
        $email=$this->input->post('Email');
        $password=sha1($this->input->post('Password'));
        $this->sb->login_sub_admin($email,$password);

    }

public function login_sub_admin($email,$password)
    {
        $this->load->library('session');
        $query=$this->db->where(['Email'=>$email,'Password'=>$password])->get('dc_user');
         $res=$query->row();
                $this->session->set_userdata('user',$res->Employee_Name);
        if(!isset($this->session->userdata['user']))
        {
            $this->session->set_userdata('user',"No session");
        }
                redirect(base_url());

    }

<?php
if(!isset($this->session->userdata['user']))
{
                         $this->session->set_userdata('user',"No session");?>
    <!-- Login -->
    <li class="nav-item">
        <a href="sub_Admin" class="nav-item-child radius-3">
            Login
        </a>

    </li>
    <!-- End Login -->

<?php }
if (isset($this->session->userdata['user'])) {$user=$this->session->userdata['user'];?>
    <!-- Home -->
    <li class="nav-item">
        <a href="#" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
            &nbsp;<?php echo $user;?>&nbsp;<img style="width: 30px; height: 30px;" class="image-circle" src="<?php echo base_url(); ?>profileimages/<?php if (isset($this->session->userdata['profile'])) {

                echo $this->session->userdata['profile'];


            }?>" alt="">

profileimages/“alt=”“>

当我加载页面/登录到网站时，它会显示

无会话

。我在自动加载中使用会话库，但我不知道为什么它突然停止工作，上次关闭项目时它工作正常，我也清除了浏览器缓存，但仍然无法修复它，我搜索了很多内容并应用了许多steps/程序，但未了解问题原因。 任何帮助都将不胜感激。

请尝试下面的代码

错误：

public function login_subadmin()
    {
        $email=$this->input->post('Email');
        $password=sha1($this->input->post('Password'));
        $this->sb->login_sub_admin($email,$password);

    }

public function login_sub_admin($email,$password)
    {
        $this->load->library('session');
        $query=$this->db->where(['Email'=>$email,'Password'=>$password])->get('dc_user');
         $res=$query->row();
                $this->session->set_userdata('user',$res->Employee_Name);
        if(!isset($this->session->userdata['user']))
        {
            $this->session->set_userdata('user',"No session");
        }
                redirect(base_url());

    }

<?php
if(!isset($this->session->userdata['user']))
{
                         $this->session->set_userdata('user',"No session");?>
    <!-- Login -->
    <li class="nav-item">
        <a href="sub_Admin" class="nav-item-child radius-3">
            Login
        </a>

    </li>
    <!-- End Login -->

<?php }
if (isset($this->session->userdata['user'])) {$user=$this->session->userdata['user'];?>
    <!-- Home -->
    <li class="nav-item">
        <a href="#" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
            &nbsp;<?php echo $user;?>&nbsp;<img style="width: 30px; height: 30px;" class="image-circle" src="<?php echo base_url(); ?>profileimages/<?php if (isset($this->session->userdata['profile'])) {

                echo $this->session->userdata['profile'];


            }?>" alt="">

要在会话中访问

配置文件

，您需要设置它

会话声明错误，修改的代码很少

此外，会话设置部分应移动到控制器

---

在控制器中

public function login_subadmin()
{
    $this->load->library('session');

    $email=$this->input->post('Email');
    $password=sha1($this->input->post('Password'));

    $result = $this->sb->login_sub_admin($email,$password);

    if (empty($result)) {
        redirect(base_url());
    } 
    else {  
        $newdata = array(
            'user'  => $result[0]['Employee_Name'],
            'profile'     => $result[0]['Profile_Image'], # New Element
            'logged_in' => TRUE
        );

        if (!$this->session->set_userdata($newdata)) {
            echo "Cannot set session";
        } else {
            redirect(base_url());
        }  
    }
}

在型号中

public function login_sub_admin($email,$password)
{
    $query = $this->db->query("SELECT * FROM dc_user WHERE email = '$email' AND password= '$password' ");
    $result = $query->result_array();
    return $result;
}

在视图中

<?php

$user = $this->session->userdata['user'];
if(empty($user))) # or can check logged_in == TRUE (recommended personally)   
{
?>
    <!-- Login -->
    <li class="nav-item">
        <a href="sub_Admin" class="nav-item-child radius-3">
            Login
        </a>

    </li>
    <!-- End Login -->

<?php 
}

if (!empty($user)) 
{
    ?>
    <!-- Home -->
    <li class="nav-item">
        <a href="#" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
            &nbsp;<?php echo $user;?>&nbsp;<img style="width: 30px; height: 30px;" class="image-circle" 
            src="<?php echo base_url(); ?>profileimages/<?php echo $this->session->userdata['Profile_Image'];?>" alt="">
        </a>
    </li>
<?php 
}

---

在控制器和post数据中显示“无法设置会话”
打印（$result）
直到不工作，打印结果
无法设置会话阵列（[0]=>Array（[Id]=>6[Employee\u Name]=>Test[Email]=>Zaffar@yahoo.com[联系方式]=>12457895[DOB]=>2016-10-22[名称]=>AC[密码]=>9341604b8acdb726ef2a1011d9c9f56bf3af810e[Profile\u Image]=>DC.png[Is\u Subadmin]=>0[Is\u Hidden]=>0]
change
$result[0]['Profile']
this
$result[0]['Profile\u Image']
让我们来看看。您是否在config.php中设置了会话保存路径并自动启动会话