Where can I place my "global" function, which will check, if user is logged in?
Because I want to do something like: user is able to browse some pages only when the function isLogged() returns TRUE, and I'd have to use it in some views, that's why it should be a "global" function, which I can access from anywhere.
Is that possible? Or there is any better solution for this?
You should probably put it into a Library, and autoload the library. When you need to use the "logged_in" flag in a view, pass it in from the controller. Example:
application/libraries/Auth.php
<?php defined('BASEPATH') OR exit('No direct script access allowed');
class Auth
{
public function is_logged_in ()
{
// Change this to your actual "am I logged in?" logic
return $_SESSION['logged_in'];
}
}
application/config/autoload.php
...
$autoload['libraries'] = array(
...
'auth',
...
}
`application/controllers/welcome.php
<?php ...
public function index ()
{
$view_data = array
(
'logged_in' => $this->Auth->logged_in()
);
$this->load->view('my_view', $view_data);
}
application/views/my_view.php
<? echo $logged_in ? 'Welcome back!' : 'Go login!' ?>
Auth be lower case in $this->Auth->logged_in()?
/application/libraries/Auth.php and have it load just that file. The BASEPATH constant is defined in the index.php file, so unless your request is going through that file (eg. a normal site request), that line stops you accessing the file. See also: en.wikipedia.org/wiki/Defence_in_depthAre you using an authentication library? If not I'd suggest one. They come with functions like that.
Tank Auth for example has: is_logged_in() , which does exactly what you want!
http://www.konyukhov.com/soft/tank_auth/
For more info about which library to use you should check out this answer which compares all libs: https://stackoverflow.com/a/476902/576223
If you don't want an authentication library you can do as suggested by Joe
is_unique[table.field] but Tank Auth doesn't use it yet, but it's a really nice library, CI is my first framework I'm learning and I didnt know there are such great libraries like this one. Well, I'll use what Joe suggested, and then I'll copy some goodies from the Tank Auth library :). Thanks!you can use MY_controller with all function needed on every page of your website. and inherit all controllers from it. read this oficial wiki
