CODEWITHSUNDEEP
phpcodeignitermodelcontroller
jisaacstone
jisaacstone

Reputation: 4284

Cannot access a variable in a codeigniter model

I am trying to access an array set in a model from a codeigniter controller, and things are acting odd.

Currently all I have in the model is this:

class Pages_model extends CI_Model {
    function __construct()
    {
        parent::__construct();
    }

    var $pages = array(
        'draw', 'stackoverflow', 'words'
    );
}

I can see the array is being set because when I execute

$this->load->model('Pages_model');
die(var_dump(get_object_vars($this->Pages_model)));

I get the output

array
  'pages' => 
    array
      0 => string 'draw' (length=4)
      1 => string 'stackoverflow' (length=13)
      2 => string 'words' (length=5)

But when I try to access the variable itself:

 $this->load->model('Pages_model');
 die(var_dump($this->Pages_model->$pages));

I get an error:

Message: Undefined variable: pages

This does not make any sense to me. What is going on????

Upvotes: 0

Views: 3777

Answers (4)

TomoMiha
TomoMiha

Reputation: 1279

Make static member:

class Model_name {
        static $member='nothing';
}
//and use it with scope resolution operator '::'
$m = new Model_name();
echo $m::member; //output: nothing
$m::member = 'something';
echo $m::member; //output: something

Upvotes: 0

Oytun
Oytun

Reputation: 474

You can access the variable directly, if you define it like this :

class Pages_model extends CI_Model {
    function __construct()
    {
        parent::__construct();
        $this->pages = array(
        'draw', 'stackoverflow', 'words'
    );
    }

}

Then you would call it by: $this->pages_model->pages

Upvotes: 0

David Nguyen
David Nguyen

Reputation: 8528

I'm not sure you can directly access variables in a model I believe you can only call functions, perhaps make a getter function for the variable and return the variable. eg.

Model Page

function get_pages() {
   return this->pages;
}

Controller

$pages = $this->Pages_model->get_pages();

Upvotes: 1

Leniency
Leniency

Reputation: 5024

Try $this->Pages_model->pages, without the $ before pages.

When you do this:

$this->Pages_model->$pages

PHP tries to evaluate the variable of $pages, which is null (Pages_model->null).

Upvotes: 6

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