Hi guys i have simple captcha that seems to working but the only problem i have seems to be with the callback function on the validation have a look at the captcha:
function index()
{
$this->load->helper('captcha');
$this->load->library('form_validation');
//Input field, Friendly name, Attributes
$this->form_validation->set_rules('name', 'Name', 'trim|required');
$this->form_validation->set_rules('email', 'Email Address', 'trim|required|valid_email');
$this->form_validation->set_rules('number', 'Contact Number', 'trim|required|numeric');
$this->form_validation->set_rules('userCaptcha', 'Captcha', 'required|callback_check_captcha');
$userCaptcha = $this->input->post('userCaptcha');
//Check the fields for Validation Errors
if ($this->form_validation->run() == FALSE) {
$random_number = substr(number_format(time() * rand(),0,'',''),0,6);
$values = array(
'word' => $random_number,
'img_path' => './captcha/',
'img_url' => base_url().'captcha/',
'img_width' => 140,
'img_height' => 32,
'expiration' => 7200
);
$data['captcha'] = create_captcha($values);
$this->session->set_userdata('captchaWord',$data['captcha']['word']);
//Load the view variables
$data['today'] = date('l, d F Y');
$data['title'] = "Contact Us";
$data['content'] = 'site/contact_view';
$this->load->view('templates/site/template', $data);
}
that all works fine the captcha genrates and displays nicely on the form but when i try and test the captcha it returns a error on my callback:
function check_captcha($str){
$word = $this->session->userdata('captchaWord');
if(strcmp(strtoupper($str),strtoupper($word)) == 0){
return true;
}
else{
$this->form_validation->set_message('userCaptcha', 'Your code did not match!');
return false;
}
}
keep getting the following error when the form runs:
Unable to access an error message corresponding to your field name Captcha.(check_captcha)
Where am i going wrong?
