How to pass parameter to the redirect method in URL helper in Codeigniter?

Question

I'm new to Codeigniter, and I want redirect to a controller after the validation is fall:

if(!validate)
{
  redirect('/poll/list');
}

but I need to pass a variable like $error to show the some error indication, but I don't know how to pass the parameter to redirect method in the URL helper, and idea?

Answer 1

Use session flashdata - this is exactly what it is designed for:

if(!validate)
{
  $this->session->set_flashdata('error', 'your_error');
  redirect('/poll/list');
}

Then inside your poll/list function:

$error_msg = $this->session->flashdata('error');

Answer 2

base url = 'http://localhost/site/'

URL http://localhost/site/controller/method

$this->uri->segment(1) = 'controller'
$this->uri->segment(2) = 'method'

Now check the below case also

base url = 'http://testsite/test/site/'

URL http://testsite/test/site/controller/method

$this->uri->segment(1) = 'controller'
$this->uri->segment(2) = 'method'

Pass your message

http://testsite/test/site/controller/method/meesage

and use $this->uri->segment(3)

You can use session also instead passing message through URL..