Codeigniter multiple checkbox issue

Question

Im using codeigniter and I have a very simple form, which has a few checkboxes:

<input type="checkbox" name="user_assign[]" value="' . $row->user_id . '">

Now, the values are definately getting posted because I can see them through firebug.

user_assign[]100002
user_assign[]100003
course_name Asbestos

But the below is empty? and i just dont understand?

$user_assign = $this->input->post('user_assign');

How is this possible?

Controller (which is damn messy because I've tried 1001 things)

    function update_course_assignment_org() {

    $data = $this->input->post('user_assign');

    $this->load->model('courses_model');
    $this->load->model('assignment_model');

    // get course id from posted course name
    $course_name = $this->input->post('course_name');
    $course_object = $this->courses_model->get_course_id($course_name);
    $course_id = $course_object[0]->course_id;

    //$user_assign = substr(implode(', ', $this->input->post('user_assign')), 0);


    //foreach ($this->input->post('user_assign') as $key => $value) {
        $test_obj = array(
           'course' => $data,
           'users' => $course_id,
           'org' => $this->input->post('course_name')
        ); 
    //}     

    //$this->assignment_model->save_org_assignments($user_ids);

    $this->template->write('title', 'Assignments');
    $this->template->write('navigation_strip', $this->load->view('navigation', array(), TRUE));         
    $this->template->write('content', $this->load->view('/assignments/assign_test', $test_obj, TRUE));

    $this->template->render();      


}

View (which is very basic because I've stripped everything down in order to try and get these values through)

                <div class="row">
                <div class="col-md-4">
                    <?php var_dump($course); print_r($course); ?>
                </div>
                <div class="col-md-4">
                <?php print_r($users); ?>
                <?php print_r($org); ?>
                </div>                  
            </div>

The form that contains the checkboxes

                        <?php echo form_open_multipart('assignments/update_course_assignment_org');?>
                        <table>
                            <tr>
                                <th>User</th>
                                <th>Assign course</th>
                            </tr>
                            <?php
                                foreach($users as $row) {                           

                                    echo '<tr>';
                                        echo '<td>' . $row->fname . ' ' . $row->sname . '</td>'; 
                                        echo '<td><input type="checkbox" name="user_assign[]" value="' . $row->user_id . '"></td>'; 
                                    echo '</tr>';

                                }
                            ?>
                            <tr>
                                <td>
                                    <input type="hidden" name="course_name" value="<?php echo $course[0]->course_name; ?>">                 
                                    <input type="submit" value="Assign" />
                                </td>
                            </tr>                               
                        </table>
                    </form>

try to check this print_r($this->input->post());

thep
– thep

2016-01-06 23:41:50 +00:00
Commented Jan 6, 2016 at 23:41 — thep
– thep, Commented Jan 6, 2016 at 23:41
Refer: stackoverflow.com/questions/3112690/…

Insane Skull
– Insane Skull

2016-01-07 05:09:15 +00:00
Commented Jan 7, 2016 at 5:09 — Insane Skull
– Insane Skull, Commented Jan 7, 2016 at 5:09
please put view and controller code

Priyank
– Priyank

2016-01-07 05:49:44 +00:00
Commented Jan 7, 2016 at 5:49 — Priyank
– Priyank, Commented Jan 7, 2016 at 5:49

krishnakumar kk · Accepted Answer · 2016-01-07 05:22:22Z

1

the return post is an array , so try the following

$user_assign = $this->input->post('user_assign');
echo "<pre>";
print_r($user_assign);

answered Jan 7, 2016 at 5:22

krishnakumar kk

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9 Comments

frobak Over a year ago

This just echos <pre>

krishnakumar kk Over a year ago

have you checked check box before submitting ?

frobak Over a year ago

Yes. and I can see in the post info via Firebug that the correct checkboxes etc are being posted. The data is there, but for some strange reason its not being picked up by the controller.

krishnakumar kk Over a year ago

are you posting it via ajax ? is there any url so that i can view the working ?

frobak Over a year ago

Nope, not via Ajax. Yeah its only a demo system, so details ill send

|

Abdulla Nilam · Accepted Answer · 2016-01-07 05:32:35Z

1

Try this

<input type="checkbox" name="user_assign[]" value="<?php echo $row['user_id'] ?>">

In Controller

$user_assign[] = $_POST('user_assign');
print_r($user_assign);

or

foreach ($_POST('user_assign') as $item) {
    echo $item;
}

answered Jan 7, 2016 at 5:32

Abdulla Nilam

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5 Comments

frobak Over a year ago

This give me the following error: Fatal error: Array callback has to contain indices 0 and 1 in /home/enets/public_html/system/application/controllers/assignments.php on line 80

Abdulla Nilam Over a year ago

@frobak did you try foreach one??

frobak Over a year ago

Yes, tried both, both give same error: Fatal error: Array callback has to contain indices 0 and 1 in /home/enets/public_html/system/application/controllers/assignments.php on line 68

Abdulla Nilam Over a year ago

var_dump($_POST('user_assign')) and post answer

frobak Over a year ago

Fatal error: Array callback has to contain indices 0 and 1 in /home/enets/public_html/system/application/controllers/assignments.php on line 68

Giri Annamalai M · Accepted Answer · 2016-01-07 10:40:31Z

1

Also check form's action as action='controller/update_course_assignment_org'

function update_course_assignment_org() {

   $this->form_validation->set_rules('user_assign','Check now','required');

   if($this->form_validation->run()){
     $data = $user_assign = implode(',',$this->input->post('user_assign') );
     print_r($_POST);
     exit;
  }
    $this->load->model('courses_model');
    $this->load->model('assignment_model');

    // get course id from posted course name
    $course_name = $this->input->post('course_name');
    $course_object = $this->courses_model->get_course_id($course_name);
    $course_id = $course_object[0]->course_id;

    //$user_assign = substr(implode(', ', $this->input->post('user_assign')), 0);


    //foreach ($this->input->post('user_assign') as $key => $value) {
        $test_obj = array(
           'course' => $data,
           'users' => $course_id,
           'org' => $this->input->post('course_name')
        ); 
    //}     

    //$this->assignment_model->save_org_assignments($user_ids);

    $this->template->write('title', 'Assignments');
    $this->template->write('navigation_strip', $this->load->view('navigation', array(), TRUE));         
    $this->template->write('content', $this->load->view('/assignments/assign_test', $test_obj, TRUE));

    $this->template->render();      


}

Try this...!

edited Jan 7, 2016 at 10:40

answered Jan 7, 2016 at 8:22

Giri Annamalai M

80910 silver badges27 bronze badges

10 Comments

frobak Over a year ago

Tried this as you can see from the commented code in my controller. Array/object still empty?

frobak Over a year ago

OK, i tried the above code, the output was: Array ( [user_assign] => Array ( [0] => 100002 [1] => 100003 ) [course_name] => Slips & Trips )

frobak Over a year ago

I can echo/print the POST vars, i just cant get the array into the controller to use

frobak Over a year ago

Why cant i get the POST vars into the controller with $this->input->post('user_assign'). it just makes no sense whatsoever??????

Giri Annamalai M Over a year ago

Let us continue this discussion in chat.

|

frobak · Accepted Answer · 2016-01-07 12:05:00Z

0

OK, so i managed to get it working via

$assignmen = @$_POST['user_assign'];

Don't ask me how or why?

Thanks everyone for your efforts in trying to solve this!

answered Jan 7, 2016 at 12:05

frobak

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