CodeIgniter Session is not set (trying to set session in callback function) - php

Question

The session is not set in the this case. It works earlier for me in an other project but now I am facing problem
This is my controller:
class Login extends CI_Controller {
public $username;
public $status;
public $user_id;
public $type = 0;
function index() {
$this->load->library('session');
$this->load->helper('url');
$this->load->helper(array('form', 'url'));
$this->form_validation->set_rules('username', 'Username', 'required');
$this->form_validation->set_rules('password', 'Password', 'required');
$this->form_validation->set_rules('username', 'Username', 'required|callback_check_details');
$this->load->library('form_validation');
if ($this->session->userdata('loggedin') == 1) {//already done
redirect('/Exams');
} else if ($this->form_validation->run() == FALSE) {
$this->load->view('Login_form');
} else {
if (isset($_REQUEST['redirect']) && $_REQUEST['redirect'] != "") {//anyone wants to get back
redirect($_REQUEST['redirect']);
} else {
redirect('/Exams'); //otherwise
}
}
}
function check_details() {
$username = $this->db->escape($this->input->post('username'));
$this->username = $username;
$password = $this->input->post('password');
$query = $this->db->query("select * from users where username=$username or email=$username");
if ($query->num_rows() > 0) {
$row = $query->row();
if ($row->active == 0 || $row->active == 2) {
$this->form_validation->set_message('check_details', 'Your account has not activated yet. Please Check your email');
return FALSE;
}
if ($this->bcrypt->check_password($password, $row->password)) {
$this->user_id = $row->user_id;
$this->type = $row->type;
$this->status = 1;
$this->session->set_userdata('loggedin', 1);
$this->session->set_userdata('username', $this->username);
$this->session->set_userdata('user_id', $this->user_id);
$this->session->set_userdata('type', $this->type);
$this->session->set_userdata('full_name', $row->full_name);
$this->session->set_userdata('roll_number', $row->roll_number);
$this->session->set_userdata('phone_number', $row->phone_number);
$this->session->set_userdata('profile_picture', $row->profile_picture);
$this->session->set_userdata('level', $this->permissions->get_level());
$this->logger->insert('Logged in.', TRUE, TRUE);
return TRUE;
}
}
$this->form_validation->set_message('check_details', 'The username or password is incorrect ');
return FALSE;
}
}
When I check session in check_detail function it always print session is set
if($this->session->userdata('loggedin')!=true){
echo "session is not set";
} else {
echo "session is set";
}
but when I check in index it always print session is not set
and I also tried to set session in index function but still facing same problem

Answer 1

You should include session library in autoload.php or session library in check_details function also. try this code
<?php
class Login extends CI_Controller {
public $username;
public $status;
public $user_id;
public $type = 0;
function index() {
$this->load->library('session');
$this->load->helper('url');
$this->load->helper(array('form', 'url'));
$this->form_validation->set_rules('username', 'Username', 'required');
$this->form_validation->set_rules('password', 'Password', 'required');
$this->form_validation->set_rules('username', 'Username', 'required|callback_check_details');
$this->load->library('form_validation');
if ($this->session->userdata('loggedin') == 1) {//already done
redirect('/Exams');
} else if ($this->form_validation->run() == FALSE) {
$this->load->view('Login_form');
} else {
if (isset($_REQUEST['redirect']) && $_REQUEST['redirect'] != "") {//anyone wants to get back
redirect($_REQUEST['redirect']);
} else {
redirect('/Exams'); //otherwise
}
}
}
function check_details() {
$this->load->library('session');
$username = $this->db->escape($this->input->post('username'));
$this->username = $username;
$password = $this->input->post('password');
$query = $this->db->query("select * from users where username=$username or email=$username");
if ($query->num_rows() > 0) {
$row = $query->row();
if ($row->active == 0 || $row->active == 2) {
$this->form_validation->set_message('check_details', 'Your account has not activated yet. Please Check your email');
return FALSE;
}
if ($this->bcrypt->check_password($password, $row->password)) {
$this->user_id = $row->user_id;
$this->type = $row->type;
$this->status = 1;
$this->session->set_userdata('loggedin', 1);
$this->session->set_userdata('username', $this->username);
$this->session->set_userdata('user_id', $this->user_id);
$this->session->set_userdata('type', $this->type);
$this->session->set_userdata('full_name', $row->full_name);
$this->session->set_userdata('roll_number', $row->roll_number);
$this->session->set_userdata('phone_number', $row->phone_number);
$this->session->set_userdata('profile_picture', $row->profile_picture);
$this->session->set_userdata('level', $this->permissions->get_level());
$this->logger->insert('Logged in.', TRUE, TRUE);
return TRUE;
}
}
$this->form_validation->set_message('check_details', 'The username or password is incorrect ');
return FALSE;
}
}