Php 如何获取会话数组数据CodeIgniter

如果我将会话数据更改为数组（我是CodeIgniter的新手），我不太清楚为什么用户名没有出现在查看页面上。我有

auth

controller来进行登录过程：

function index() {
            $this->load->library('form_validation');
            $this->form_validation->set_rules('username', 'username', 'required|trim|xss_clean');
            $this->form_validation->set_rules('password', 'password', 'required|trim|xss_clean');

        if ($this->form_validation->run() == FALSE) {
            $this->load->view('Login');
            # code...
        }
        else {
            $username = $this->input->post('username');
            $password = $this->input->post('password');
            $check = $this->M_login->check($username, $password);

            // session data
            if ($check->num_rows() == TRUE) {
                foreach ($check->result() as $value) {
                    $sess_data['id']            = $value->id;
                    $sess_data['name']          = $value->name;
                    $sess_data['username']      = $value->username;
                    $sess_data['password']      = $value->password;
                    $sess_data['description']   = $value->description;
                    $this->session->set_userdata($sess_data);                        
            }
            redirect('Dashboard');
        }
        else {
            $this->session->set_flashdata('result_login', '<br>Invalid username or password, try again.');
            redirect('Login');
        }

使用以上代码，我可以通过

echo$username

在仪表板视图中获取用户名。但当我像这样更改会话数据时：

if ($check->num_rows() == TRUE) {
   foreach ($check->result() as $value) {

   // session data
   $sess_data = array(
               'id'           => $value->id,
               'username'     => $value->username,
               'password'     => $value->password,
               'name'         => $value->name,
               'description'  => $value->description
             );
   $this->session->set_userdata('log',$sess_data);
   }
}

if(!$this->session->userdata('id')) {
     $getdata= $this->session->userdata('log');

     $data['username'] = $getdata['username'];
}
$this->load->view('Dashboard', $data);

和仪表板控制器更改如下：

if ($check->num_rows() == TRUE) {
   foreach ($check->result() as $value) {

   // session data
   $sess_data = array(
               'id'           => $value->id,
               'username'     => $value->username,
               'password'     => $value->password,
               'name'         => $value->name,
               'description'  => $value->description
             );
   $this->session->set_userdata('log',$sess_data);
   }
}

if(!$this->session->userdata('id')) {
     $getdata= $this->session->userdata('log');

     $data['username'] = $getdata['username'];
}
$this->load->view('Dashboard', $data);

然后用户名从查看页面中消失。如何在会话数组中存储用户名并在查看页面中调用它。请分享你的建议或经验

---

谢谢。

在会话中添加数据：-

$newdata = array(
               'username'  => 'johndoe',
               'email'     => 'johndoe@some-site.com',
               'logged_in' => TRUE
           );

$this->session->set_userdata($newdata);

$session_id = $this->session->userdata('username');

从会话检索数据：-

$this->session->all_userdata()

检索单个数据：-

$newdata = array(
               'username'  => 'johndoe',
               'email'     => 'johndoe@some-site.com',
               'logged_in' => TRUE
           );

$this->session->set_userdata($newdata);

$session_id = $this->session->userdata('username');

您可以参考此代码

public function loginaction()
{
    $this->load->library('session');
    $a      =   $this->input->post('email');
    $b      =   trim($this->input->post('password'));
    $b1     =   md5($b);
    $c      =   1;
    $data   =   $this->userdata->userlogin($a,$b1,$c);
    if($data)
    {
        echo true;
        foreach ($data as $login)
        {
            $uid=$this->session->set_userdata('logId',$login->usr_id);
        }
    }
    else
    {
        echo "Invalid username or password..!!!!";
        $a=$this->input->post('email');
    }
}

你可以这样做

$username   = $this->input->post('username');
$password   = $this->input->post('password');
$check      = $this->M_login->check($username, $password);

if ($check->num_rows() > 0) 
{
    $value = $check->row();
    $sess_data['id']            = $value->id;
    $sess_data['name']          = $value->name;
    $sess_data['username']      = $value->username;
    $sess_data['password']      = $value->password;
    $sess_data['description']   = $value->description;
    $this->session->set_userdata($sess_data);   
    redirect('Dashboard');
}
else
{
    $this->session->set_flashdata('result_login', '<br>Invalid username or password, try again.');
    redirect('Login');
}

---

正如我前面提到的，我的代码是使用单一数据方法的，我尝试了你的数组建议，但仍然不起作用。哦，我已经解决了这个问题。我想我写错了代码，所以这里是工作代码：仪表板控制器

public function\uuuu-construct（）{parent:：\uuu-construct（）；if（！$this->session->userdata（'log'））{redirect（'login'）；}}公共函数index（）{$username=$this->session userdata（'log'））；//将其以数组形式传递给视图，如$data['username']=$username['username']；$this->load->view（'Dashboard'，$data）；}

我的回答对您有帮助吗？