Repopulating checkboxes in Codeigniter after Unsuccessful Form Validation

Question

I have a problem repopulating a set of checkboxes after an unsuccessful form validation returns the user back to the same form. Dropdown menus and text inputs could be repopulat

Answer 1

Here's a working example. You are required to include the array name with brackets [] in each of $this->form_validation->set_rules(), form_checkbox() and set_checkbox().

In the controller:

    $this->load->library('form_validation');

    $this->form_validation->set_rules('set_reminder_days[]', 'Reminder Day', 'trim');

    if( $this->form_validation->run() == FALSE ) //Field validation failed.
    {
        //form validation errors will show up automatically
    }
    else //Validation success.
    {
        //This is an array of all checked checkboxes
        $reminder_days = $this->input->post('set_reminder_days');
    }

In the view:

    $day_options = array(
        'S' => 'Sunday',
        'M' => 'Monday',
        'T' => 'Tuesday',
        'W' => 'Wednesday',
        'Th' => 'Thursday',
        'F' => 'Friday',
        'Sa' => 'Saturday'
    );

    foreach( $day_options as $key => $day_option ) {
        echo form_checkbox('set_reminder_days[]', $key, set_checkbox('set_reminder_days[]', $key), 'class="form-checkbox"');
    }