Sessions, second call to set_userdata fails to set value

[eluser]Skiedra[/eluser]
Problem: I set an array into an encrypted cookie via sessions using this:

Code:

$newdata = array(
   'userId'     => $register['result'],
   'loggedIn'     => TRUE,    
   'login'     => $this->input->post('username')
);
      
$this->session->set_userdata($newdata);

Bit later I do:

Code:

$serviceId = 0;
$this->session->set_userdata('serviceId' => $serviceId);

And the var_dump($this->session->userdata) shows all $newdata variables set, yet serviceId is showing as false.

[eluser]Madoc[/eluser]
I do not think it fails to set the data. your 0 value is (I think) interpreted as false by php.

[eluser]Skiedra[/eluser]
0 is just an example. The value itself does not matter

If I move the 'serviceId' => $serviceId into the array above, it works ok.

[eluser]Madoc[/eluser]
Sorry I did not spot it before ! Your use of the userdata function for single value is wrong.

Code:

$this->session->set_userdata('serviceId' => $serviceId);

//should be replaced by
$this->session->set_userdata('serviceId',$serviceId);

[eluser]Skiedra[/eluser]
My bad, I was using $this->session->set_userdata(array('serviceId' => $serviceId));

I need to read docs more carefully. Thanks for pointing, Madoc