How to store variable in session codeigniter

Question

I would like to store the variable in the session currently i am tryin like this but not working.

In Controller

<?php
session_start(); 
$_SESSION['myvar']='myvalue';
?>

Answer 1

You don't have to set the session the PHP way.

CodeIgnter has its on Session Class

Load the session library:

$this->load->library('session');

To set session data:

$this->session->set_userdata('some_name', 'some_value');

To retrieve session data:

$this->session->userdata('some_name');

To remove session data:

$this->session->unset_userdata('some_name');

Answer 2

Simple :

First, load this library

$this->load->library('session');

Then, to add some informations in session :

$newdata = array(
                   'username'  => 'johndoe',
                   'email'     => '[email protected]',
                   'logged_in' => TRUE
               );

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

Next, if you want to get values :

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

And to remove :

$this->session->unset_userdata('some_name');

A simple search "codeigniter session" could have help you ...

https://www.codeigniter.com/user_guide/libraries/sessions.html

Don't forget to upvote and mark as solved if you find this useful :)

Answer 3

I consider storing my session data in a controller. So this is how you should go about storing and retrieving session data

1.Use autoload in your config.php files. It saves you time and load time

autoload['libraries'] = ('session);

2.In your controller.php create an array to store your session data.

$new_data = array( 'username' => 'martin', 'email' => '[email protected]', 'user_logged => TRUE );

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

3. Then this is how to call your session data(create a variable and assign it the value of one of the session data you need):

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

For further reference visit codeigniter user_guide/sessions