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Asked: 2026-05-13T23:35:15+00:00

i’m trying to learn codeigniter (following a book) but don’t understand why the web

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i’m trying to learn codeigniter (following a book) but don’t understand why the web page comes out empty.

my controller is

class Welcome extends Controller {

    function Welcome()
    {
        parent::Controller();
    }

    function index()
    { 
        $data['title'] = "Welcome to Claudia's Kids";
        $data['navlist'] = $this->MCats->getCategoriesNav();
        $data['mainf'] = $this->MProducts->getMainFeature();
        $skip = $data['mainf']['id'];
        $data['sidef'] = $this->MProducts->getRandomProducts(3, $skip);
        $data['main'] = "home";     
        $this->load->vars($data);
        $this->load->view('template');
    }

the view is:

<--doctype declaration etc etc.. -->
</head>
<body>
    <div id="wrapper">
        <div id="header">
            <?php $this->load->view('header');?>
        </div>

        <div id='nav'>
            <?php $this->load->view('navigation');?>
        </div>

        <div id="main">
            <?php $this->load->view($main);?>
        </div>

        <div id="footer">
            <?php $this->load->view('footer');?>
        </div>

    </div>
</body>
</html>

Now I know the model is passing back the right variables, but the page appears completely blank. I would expect at least to see an error, or the basic html structure, but the page is just empty. Moreover, the controller doesn’t work even if I modify it as follows:

function index()
{ 
    echo "hello.";
}

What am I doing wrong?
Everything was working until I made some changes to the model – but even if I delete all those new changes, the page is still blank.. i’m really confused!

thanks,
P.

I’ve isolated the function that gives me problems.
here it is:

function getMainFeature()
{
    $data = array();
    $this->db->select("id, name, shortdesc, image");
    $this->db->where("featured", "true");
    $this->db->where("status", "active");
    $this->db->orderby("rand()");
    $this->db->limit(1);
    $Q = $this->db->get("products");
    if ($Q->num_rows() > 0)
    {
        foreach($Q->result_arry() as $row)
        {
            $data = array(
                "id" => $row['id'],
                "name" => $row['name'],
                "shortdesc" => $row['shortdesc'],
                "image" => $row['image'] 
                );
        }
    }
    $Q->free_result();
    return $data;
}

I’m quite convinced there must be a syntax error somewhere – but still don’t understand why it doesn’t show any error, even if I’ve set up error_reporting E_ALL in the index function..

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1 Answer

  1. Editorial Team

    First port of call is to run php -l on the command line against your controller and all the models you changed and then reverted.

    % php -l somefile.php

    It’s likely that there is a parse error in one of the files, and you have Display Errors set to Off in your php.ini. You should set Display Errors on for development and off for production, in case you haven’t already.

    (Edit: in the example above you have missed off the closing } of the class. It might be that.)

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