Setting a Config Item

As you have realized Ion auth loads config items into its own config key using this scheme

PHP Code:

$this->load->config('ion_auth', TRUE); 


What that means is that $config['ion_auth'] will hold an array of the contents of application/config/ion_auth.php

So to set the identity key this ought to work

PHP Code:

$config['ion_auth'] ['identity'] = 'new_value'; 


Or this amounts to the exact same thing only it requires more typing.

PHP Code:

$ion_auth_config = $this->config->item('ion_auth');
$ion_auth_config ['identity'] = 'new_value';