CodeIgniter pass variable from controller to view

Question

Sorry if this question is already been answered, but i couldn't find an answer. I want to pass a variable from my model to the controller and finally display it in the view.

I execute a query on the database and after that I count my results (via num_rows). Then I return the result.

public function countHighRisk(){
    $this->db->select("ares_status");
    $this->db->from("tbl_alert_result");
    $this->db->join('tbl_status_standards', 'ares_status = sts_status_id');
    $this->db->where('sts_status_risk', 3);
    $query = $this->db->get();

    return $query->num_rows();
}

After that i place the result in an array and pass the array to my view.

public function index()
{
    $this->load->model('Alert_result_model');
    $data['high'] = $this->Alert_result_model->countHighRisk();

    $this->load->view('templates/head');
    $this->load->view('templates/menu');
    $this->load->view('pages/Dashboard', $data);
    $this->load->view('templates/footer');
}

I get an error when I try to display the variable in the view.

<div class="col-xs-8 text-right">
     <span> High Risk </span>
     <h2 class="font-bold"><span class="count"><?= $high; ?></span></h2>
</div>

error: https://i.sstatic.net/8cvLO.jpg

Thanks in advance.

Check the value is getting on the controller by print_r($data['high']); exit; — Vinod VT
– Vinod VT, Commented Mar 24, 2015 at 9:05
can you check if $this->Alert_result_model->countHighRisk(); returns correct variable — arkoak
– arkoak, Commented Mar 24, 2015 at 9:06
echo $data['high']; after the database call...is that printing any value;? — Danyal Sandeelo
– Danyal Sandeelo, Commented Mar 24, 2015 at 9:06
IS YOUR QUERY RETURNS ANYTHING? check it first IS YOUR QUERY RIGHT ? try echo $this->db->last_query();exit; below $query — Narendrasingh Sisodia
– Narendrasingh Sisodia, Commented Mar 24, 2015 at 9:08
Thank you guys, for the fast response. Apparently there is nothing wrong with the code. I just restarted my localhost and now it works! — Sven Habex
– Sven Habex, Commented Mar 24, 2015 at 9:11

DJ' · Accepted Answer · 2015-03-24 09:21:29Z

1

Your whole idea of calling the views is wrong here. Please use it as follows:

Controller:

public function index()
{
    $this->load->model('Alert_result_model');
    $data['high'] = $this->Alert_result_model->countHighRisk();

    $this->load->view('pages/Dashboard', $data);
}

View:

<? $this->load->view('templates/head'); ?>
<? $this->load->view('templates/menu'); ?>
<div class="col-xs-8 text-right">
     <span> High Risk </span>
     <h2 class="font-bold"><span class="count"><?= $high; ?></span></h2>
</div>
<? $this->load->view('templates/footer'); ?>

Also check what $this->Alert_result_model->countHighRisk(); is actually returning by doing print_r($this->Alert_result_model->countHighRisk();)

answered Mar 24, 2015 at 9:21

DJ'

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4 Comments

Sven Habex Over a year ago

Thanks, but the problem is already fixed. There was no error in my code. I just restarted localhost. But are you saying that I have to call other views in a view? In the documentation of codeigniter they say that you have to call multiple views in the controller. ellislab.com/codeigniter/user-guide/general/views.html

DJ' Over a year ago

I am not really fan of code igniter documentation, but yeah, its a bit messy when you are calling 3 static lines over and over again in controllers, so why not just call them in views instead. Remember documentation is not word of God :)

DJ' Over a year ago

The documentation you shared is just an example, which is not architecturally correct in 90% of the cases.

Sven Habex Over a year ago

Thanks, I agree it looks a bit messy. So I will do it like you say :)

score 1 · Accepted Answer · 2015-03-24 09:43:32Z

1

You can load a view into controller but do this way below

class Dashboard extends CI_Controller {
 public function index() {

  $this->load->model('Alert_result_model');
  $data['high'] = $this->Alert_result_model->countHighRisk();

  // Choose only one header examples:
  $data['header'] = $this->load->view('header', Null, TRUE); // If No Data
  $data['header'] = $this->load->view('header', $data, TRUE); // If Data

  // Choose only one Footer examples:
  $data['footer'] = $this->load->view('footer', Null, TRUE); // If No Data
  $data['footer'] = $this->load->view('footer', $data, TRUE); // If Data

  $this->load->view('dashboard', $data);
 }
}

Dashboard View

<?php echo $header;?>

<?php foreach ($high as $low) { ?>

   <?php echo $low['something'];?>

<?php }?>

<?php echo $footer;?>

If you have a header separate header controller and footer controller you will need HMVC if you are confused on user guide top right corner of default user guide in CI3 is a switch to more cleaner version.

edited Mar 24, 2015 at 9:43

answered Mar 24, 2015 at 9:34

user4419336

1 Comment

Owais Alam Over a year ago

i have read the article about how to pass data From Controller To View In CodeIgniter cloudways.com/blog/how-to-pass-data-in-codeigniter

DJ' · Accepted Answer · 2015-03-24 09:46:39Z

0

please change

$this->load->view('pages/Dashboard', $data);

into

$this->load->view('pages/Dashboard', $data, true);

now it should work.

edited Mar 24, 2015 at 9:46

DJ'

1,7781 gold badge13 silver badges27 bronze badges

answered Mar 24, 2015 at 9:16

varatha raj

11 bronze badge

1 Comment

Sven Habex Over a year ago

Thanks, but this was not necessary I just restarted my localhost and now it works just fine.

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