How to add custom session data in CodeIgniter? - php

Question

function session_input()
{
$session_value = $this->input->post('welcome');
$this->session->set_userdata('name', $session_value);
echo "<a href='". base_url()."/index.php/contact/session_output'> go to </a>";
echo "your session has been save " ;
}
Is this correct?

Answer 1

Retrieving Session Data
Any piece of information from the session array is available using the following function:
$this->session->userdata('item');
Where item is the array index corresponding to the item you wish to fetch. For example, to fetch the session ID you will do this:
$session_id = $this->session->userdata('session_id');
Note: The function returns FALSE (boolean) if the item you are trying to access does not exist.
Adding Custom Session Data
$this->session->set_userdata($array);
$newdata = array(
'username' => 'johndoe',
'email' => 'johndoe#some-site.com',
'logged_in' => TRUE
);
$this->session->set_userdata($newdata);

Answer 2

yes correct
$session_value = $this->input->post('welcome');
if($this->session->set_userdata('name', $session_value)){
echo "your session has been save";
}
you can read more about it here ->
https://ellislab.com/codeigniter/user-guide/libraries/sessions.html

Answer 3

if its single value session:
$this->session->set_userdata('session_name', 'session_value');
if its multiple value session:
$array_name = array('value1','value2','value3');
$this->session->set_userdata('session_name',$array_name);
array along with key
$array_name = array('key_name1'=>'value1','key_name2'=>'value2','key_name3'=>'value3');
$this->session->set_userdata('session_name',$array_name);
to get the session value
$var = $this->session->userdata('session_name');