Problem with Codeigniter error session

Question

I have a small login problem with codeigniter, after logging in it does not transfer the data by session.
I took the following test:

• I printed the session in the controler [ok, printed correct data]
• I printed the session on another controller [printed nothing]
• cleared Cache

Login:

public function login(){
        $usuario    =   $this->input->post('usuario'); // recebe name usuario pelo post
        $senha      =   $this->input->post('senha');
        $this->db->where('usuario', $usuario); // pega o valor igual ao usuario do post no banco
        $this->db->where('senha', $senha);
        $this->db->where('ativo',1);
        $usuario = $this->db->get('usuarios')->result();
        if (count($usuario)===1) {
            $dados  = array(
                'usuario'=>$usuario[0]->usuario,
                'logado'=> TRUE 
                );
            $this->session->set_userdata($dados);
            //print_r($dados);
            redirect('administracao/categorias');
        }else{
            echo heading('Usuario não encontrado', 2);
        }
    }

Login Verification:

class Categorias extends CI_Controller{
    public function __construct(){
        parent::__construct();

        if (!$this->session->userdata('usuario') || !$this->session->userdata('logado')) {
            redirect('administracao/home');
        }

    }

Answer 1

Well, I’m not sure if it’s the solution, but try to record session by session in your code. Always make sure you’re calling the library session on your controller or on your controller autoload.php.

I updated the code, making it more accurate

Login:

public function login(){
        $usuario    =   $this->input->post('usuario'); // recebe name usuario pelo post
        $senha      =   $this->input->post('senha');
        $this->db->where('usuario', $usuario); // pega o valor igual ao usuario do post no banco
        $this->db->where('senha', $senha);
        $this->db->where('ativo',1);
        $usuario = $this->db->get('usuarios');
        if ($usuario->num_rows() > 0) {

            $this->session->set_userdata('usuario', $usuario);
            $this->session->set_userdata('logado', TRUE);

            //print_r($dados);
            redirect('administracao/categorias');
        }else{
            echo heading('Usuario não encontrado', 2);
        }
    }

Also check your config.php if session settings are more or less like this:

$config['sess_cookie_name']     = 'ci_session';
$config['sess_expiration']      = 7200;
$config['sess_expire_on_close'] = FALSE;
$config['sess_encrypt_cookie']  = FALSE;
$config['sess_use_database']    = FALSE;
$config['sess_table_name']      = 'ci_sessions';
$config['sess_match_ip']        = FALSE;
$config['sess_match_useragent'] = TRUE;
$config['sess_time_to_update']  = 300;