How to pass parameter via URL?

[eluser]Sinclair[/eluser]
Thanks for your reply, but I can't get working.

It works if I have this:

- Model:

Code:

function getAnunciosZona($pzona) {
   $query = $this->db->query("select id_anuncio, n_anuncio from atw_anuncios where id_zona = '".$pzona."' ");
   return $query->result();
    }

- Controller:

Code:

function index() {
   $this->load->model('acomp_model');    
   $data['result'] = $this->acomp_model->getAnunciosZona('SP');
        
   $this->load->view('anuncios', $data);
    }

But if I have this, when I call the second segment, gives me an error.

I call the parameter like this: http://www.example.com/anuncios/SP

- Model:

Code:

function getAnunciosZona($pzona) {
   $query = $this->db->query("select id_anuncio, n_anuncio from atw_anuncios where id_zona = '".$pzona."' ");
   return $query->result();
    }

- Controller:

Code:

function index() {
   $this->load->model('acomp_model');    
   $data['result'] = $this->acomp_model->getAnunciosZona($pzone = $this->uri->segment(2));
        
   $this->load->view('anuncios', $data);
    }

What I'am doing wrong?

Best Regards,