CodeIgniter - Check if Session variable exist

Question

In CodeIgniter, checking if an input exists is easy.

Rather than using

$something = isset($_POST['something']) ? $_POST['something'] : NULL;

You can simply do:

$something = $this->input->post('something');

My question is, is it the same with session?

$something = isset($_SESSION['something']) ? $_SESSION['something'] : NULL;

the same with

$something = $this->session->something;

Possible duplicate of IF Session data exists, output in view — B.Kocaman
– B.Kocaman, Commented Mar 15, 2017 at 7:47
Possible duplicate of CodeIgniter-Checking session variable is already set or not when clicking each link or reloading page — Pacio
– Pacio, Commented Mar 15, 2017 at 8:32

Hikmat Sijapati · Accepted Answer · 2017-03-15 08:42:02Z

1

Check whether session variable is set or not using $this->session->has_userdata('variable'); so try like this..

$something = $this->session->has_userdata('something')? $this->session->userdata('something') : NULL;

if session variable is not set then $something has NULL value otherwise it has session value.

answered Mar 15, 2017 at 8:42

Hikmat Sijapati

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Comments

Pacio · Accepted Answer · 2017-03-15 10:10:04Z

1

Yes, $this->session->something will work just fine.

Just remember to load the library. And read the manual if you like:

user4419336

answered Mar 15, 2017 at 7:49

Pacio

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