Session user data get error - php

Question

This is my Controller:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class admin extends ci_controller{
function __construct(){
parent::__construct();
$this->load->library('session');
$this->load->helper(array('form', 'url', 'security', 'html'));
$this->load->library('form_validation');
$this->load->model($this->config->item('admin_model'), 'admin_db_connection', TRUE);
//$this->load->model('admin_model' ,TRUE);
//$this->load->helper('security');
$this->load->helper('date');
//$this->load->library('Ajax');
$this->load->library("pagination");
$this->load->database();
$this->load->helper('url'); //You should autoload this one ;)
}
public function index(){
$this->load->view('admin/login');
}
public function check_admin(){ //echo'admin';
$this->load->helper('form');
$this->form_validation->set_rules('admin_name','admin name','trim|required|xss_clean');
$this->form_validation->set_rules('email','Email','trim|required|xss_clean');
$this->form_validation->set_rules('password','password','trim|required|xss_clean');
if($this->form_validation->run()== FALSE)
{ //echo 'invalid login ';
$this->index();
}
else
{
$data=array();
$data['admin_name']=$this->input->post('admin_name',true);
$data['email']=$this->input->post('email',true);
$data['password']=$this->input->post('password',true);
//echo "<pre>";
if ($query = $this->admin_db_connection->check_admin_validation($data))
{
// print_r($po);exit;
$newdata=array
(
'id' => $query[0]['id'],
'admin_name' => $query[0]['admin_name'],
'email'=>$query[0]['email'],
'status' => $query[0]['status'],
'sign_in'=>TRUE
);
// echo "<pre>";
//print_r($newdata);exit;
$this->session->set_userdata('auth', $newdata);
//$return= true;
//print_r($auth);exit;
redirect('dashboard');
return TRUE;
}
else
{
echo 'invalid login';
$this->index();
//redirect('admin/index', 'refresh');
return FALSE;
}
}
}
function logout()
{
$this->session->sess_destroy();
redirect('admin');
}
}
?>
This is my model:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class admin_model extends ci_model{
function check_admin_validation($data){
$this->session->userdata('auth');
$this->db->select('*');
$this->db->from('admin_user');
$this->db->where('admin_name' , $data['admin_name']);
$this->db->where('email', $data['email']);
$this->db->where('password', $data['password']);
$query=$this->db->get();
if($query->num_rows()>0)
{
$resulet=$query->result_array();
$query->free_result();
return $resulet;
}
else
{
return false;
}
}
}
?>
When I use this code $this->session->set_userdata($newdata); instead of $this->session->set_userdata('auth', $newdata); then it works, but above code doesn't. Can someone tell me, where the problem is?

Answer 1

If I am not mistaken, the second parameter for the set_userdata function is a string, whereas you're passing an array.
This may be why your code isn't working.

Answer 2

The way to set session value at codeigniter is
$this->session->set_userdata('some_name', 'some_value');
//some_value should not be array
//But your are setting array as value which is wrong.
$this->session->set_userdata($newdata);
//This will set each array key to your session.
//That's why it is working
If you really want to set array into one sesson key you can do it following way
$this->session->set_userdata("auth",json_encode($newdata);
Now you can retrive data as
$auth=json_decode($this->session->userdata("auth"));
please look at codeigniter documentation

Answer 3

thank you now i solved my problem.thank you all and stackoverflow because if i not post here i cant find my answer.here is the problem my dashboard i passed wrong value 'sing_in' right value 'auth'.
if (!$this->session->userdata('sing_in'))
{
redirect('admin');
}`enter code here`