custom error message codeigniter doesn't show up

Question

the custom error message doesn't displaying the error,it only shows blank page instead error message

here is my controller :

public function daftar(){
  $this->form_validation->set_rules('email','Email','required');
  $this->form_validation->set_rules('nama','Nama','required');
  $this->form_validation->set_rules('pass','Password','required');
  $this->form_validation->set_rules('passconf','PasswordConf','required|matches[pass]');

  if($this->form_validation->run()==FALSE){
  $this->form_validation->set_message('passconf','the password doesnt match');

 }
 else{
   redirect('lowongan/daftar_employer');
 }

 }

}

Answer 1

You need to escape the apostrophe in the word "doesn't".

$this->form_validation->set_message('passconf','the password doesn\'t match');

Answer 2

write a custom callback function to set your own error message

callback_custom_error

  $this->form_validation->set_rules('passconf','PasswordConf','required|matches[pass]|callback_custom_error');


public function custom_error($str)
{
    if($this->form_validation->run()==FALSE)
    {
          $this->form_validation->set_message('passconf','your custom message');
          return FALSE;
    }
    else
    {
          return TRUE;
    }

}