Login

09-03-2012, 03:06 PM

[eluser]Madigan[/eluser]
Hey, I'm trying to learn codeigniter and make a simple blog. In order to have pages that react to different types of users (not logged in, logged in, admin, etc.), I am extending the base controller so that it has a little "logged in" variable. However, when I extend my controller, I get an error saying that the variable doesn't exist when I try to extend the class.

Code:
&lt;?php if (! defined('BASEPATH')) exit('No direct script access allowed.');

class MY_Controller extends CI_Controller

{

 public $loggedIn = "";

 function __construct()

 {

  parent::__construct();

  //$loggedIn = $this->session->userdata('privileges');

  $loggedIn = "test";

 }

}

?&gt;

Code:
&lt;?php if (! defined('BASEPATH')) exit('No direct script access allowed');

class CHome extends MY_Controller

{

 function __construct()

 {

  parent::__construct();

 }

 function index()

 {

  $this->load->view('vhome', array('loggedIn' => $loggedIn));

 }

}

?&gt;

Code:
<!DOCTYPE html>

&lt;html&gt;

 &lt;head&gt;

  &lt;title&gt;My Site&lt;/title&gt;[removed]

 &lt;/head&gt;

 &lt;body&gt;

  &lt;header id="header"&gt;&lt;/header>

  <nav id="navBar"></nav>

  <section id="content">&lt;? echo $loggedIn; ?&gt;</section>

  <footer id="footer"></footer>

 &lt;/body&gt;

&lt;/html&gt;

I think I should be able to access any public/protected variables from the parent class. However, for some reason it doesn't seem to be working. Any ideas?

09-03-2012, 05:03 PM

[eluser]CroNiX[/eluser]
Because in your construct, you are setting a local variable, not a class property. You need to reference the class using $this to set class properties...

Code:
$this->loggedIn = "test";

09-03-2012, 06:24 PM

[eluser]Madigan[/eluser]
[quote author="CroNiX" date="1346717003"]Because in your construct, you are setting a local variable, not a class property. You need to reference the class using $this to set class properties...

Code:
$this->loggedIn = "test";

[/quote]

I'm sorry, I'm more used to Java/C# so I'm a little slow at this...
When I make that change, I'm still getting a scope errors on line 10:

Code:
&lt;?php if (! defined('BASEPATH')) exit('No direct script access allowed.');

class MY_Controller extends CI_Controller

{

 protected $loggedIn;

 function __construct()

 {

  parent::__construct();

  //$loggedIn = $this->session->userdata('privileges');

  $this->$loggedIn = "test";

 }

}

?&gt;

It says that the property is undefined, so I'm not quite sure what's up?

09-04-2012, 07:52 AM

[eluser]Rolly1971[/eluser]
it is like this:

Code:
$this->loggedin = 'test';

not:

Code:
$this->$loggedin = 'test';

see the difference?

09-04-2012, 09:09 PM

[eluser]Madigan[/eluser]
[quote author="Rolly1971" date="1346770330"]it is like this:

Code:
$this->loggedin = 'test';

not:

Code:
$this->$loggedin = 'test';

see the difference?[/quote]

*facepalm*

Yeah, thanks.