如何獲取會話數組數據CodeIgniter

Question

如果我將會話數據更改為數組（我是CodeIgniter中的新用戶），我不太清楚為什么用戶名沒有出現在視圖頁面上。 我有auth控制器來進行登錄過程：

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');
        }

這是我的儀表板控制器 ：

public function __construct() {
            parent::__construct();
            if(!$this->session->userdata('id')){
                redirect('login');
            }
    }

    public function index() {
        // Dashboard view
        $username = $this->session->userdata('username');

        $data['username']=$username;

        $this->load->view('Dashboard', $data);    
    }

    function logout() {
        $this->session->sess_destroy('id');
        redirect('login');
    }

使用上面的代碼，我可以通過echo $username在我的儀表板視圖上獲取用戶echo $username 。 但是當我改變這樣的會話數據時：

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);
   }
}

並且儀表板控制器改變如下：

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

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

然后用戶名從視圖頁面消失。 如何在會話數組中存儲用戶名並在視圖頁面中調用它。 請分享您的更好的建議或您的經驗。

謝謝。

Answer 1

在會話中添加數據： -

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

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

從會話中檢索數據： -

$this->session->all_userdata()

檢索單個數據： -

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

Answer 2

您可以參考此代碼

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');
    }
}

Answer 3

你可以這樣做

$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');
}

在你看來

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