How to display disallowed file type error in case of upload in Codeigniter 3?

I am working on a basic blog application with Codeigniter 3.1.8 and Bootstrap 4.

The posts, of course, have main images. There is a [i]default image[/i] if no image is uploaded by the user but, if an image [i]is[/i] uploaded, there are only 3 types allowed: jpg, jpeg and png.

Wanting to warn the user in case she/he tries to upload other file formats, I did this in the Posts controller:

Code:

// Upload image
$config['upload_path'] = './assets/img/posts';
$config['allowed_types'] = 'jpg|jpeg|png';
$config['max_size'] = '2048';

$this->load->library('upload', $config);

if(!$this->upload->do_upload()){

    $data['uerrors'] = $this->upload->display_errors();

    if ($data['uerrors']) {
        $this->load->view('partials/header', $data);
        $this->load->view('dashboard/create-post');
        $this->load->view('partials/footer');
    } else {
        $post_image = 'default.jpg';
    }

} else {
    $data = array('upload_data' => $this->upload->data());
    $post_image = $_FILES['userfile']['name'];
}

Yet, I get a [i]Undefined variable: uerrors[/i] error.

Where is my mistake?

You don't load the data in the view.

PHP Code:

$this->load->view('dashboard/create-post', $data); 


See the tutorial in the documentation.
And if there are no errors?
What code have you in the view?

Andre

You don't load the data in the view.

PHP Code:

$this->load->view('dashboard/create-post', $data); 


See the tutorial in the documentation.
And if there are no errors?
What code have you in the view?

Andre

I do. Here is the entire method:

PHP Code:

public function create() {

    // Only logged in users can create posts
    if (!$this->session->userdata('is_logged_in')) {
        redirect('login');
    }

    $data = $this->get_data();
    $data['tagline'] = "Add New Post";

    if ($data['categories']) {
        foreach ($data['categories'] as &$category) {
            $category->posts_count = $this->Posts_model->count_posts_in_category($category->id);
        }
    }

    $this->form_validation->set_rules('title', 'Title', 'required');
    $this->form_validation->set_rules('desc', 'Short description', 'required');
    $this->form_validation->set_rules('body', 'Body', 'required');
    $this->form_validation->set_error_delimiters('<p class="error-message">', '</p>');

    if($this->form_validation->run() === FALSE){
        $this->load->view('partials/header', $data);
        $this->load->view('dashboard/create-post');
        $this->load->view('partials/footer');
    } else {
        // Create slug (from title)
        $slug = url_title(convert_accented_characters($this->input->post('title')), 'dash', TRUE);
        $slugcount = $this->Posts_model->slug_count($slug, null);
        if ($slugcount > 0) {
            $slug = $slug."-".$slugcount;
        }

        // Upload image
        $config['upload_path'] = './assets/img/posts';
        $config['allowed_types'] = 'jpg|jpeg|png';
        $config['max_size'] = '2048';

        $this->load->library('upload', $config);

        if(!$this->upload->do_upload()){

            $data['uerrors'] = $this->upload->display_errors();

            if ($data['uerrors']) {
                $this->load->view('partials/header', $data);
                $this->load->view('dashboard/create-post');
                $this->load->view('partials/footer');
            } else {
                $post_image = 'default.jpg';
            }

        } else {
            $data = array('upload_data' => $this->upload->data());
            $post_image = $_FILES['userfile']['name'];
        }

        $this->Posts_model->create_post($post_image, $slug);
        $this->session->set_flashdata('post_created', 'Your post has been created');
        redirect('/');
    }
} 


Best,

What i mean is when you have no errors you must past "uerrors" also to you're view but then empty "".
But i can't see that because i can't see the full code off you're view and controller.
What i do is send the error with flash data.
for example.

PHP Code:

$config['upload_path']         = './assets/images/users/';
  $config['allowed_types']       = 'jpg|jpeg|png';
  $config['max_size']            = 500;
  $config['overwrite']           = TRUE;
  $config['remove_spaces']       = TRUE;
  $config['encrypt_name']        = TRUE;

  $this->load->library('upload', $config);
  $field_name = 'profilefile';

  if( ! $this->upload->do_upload($field_name))
  {
      $data['error'] = $this->upload->display_errors();
      $this->session->set_flashdata('UpdateProfilePicError', $data['error']);
      redirect('edit_profile_pic');
  }