URL relativity and codeigniter

I set the url:

$this->session->set_userdata('destination', $this->input->server('REQUEST_URI'));
 

Then redirect (doesn't work because it prepends site address):

redirect($this->session->userdata('destination'));
 

Is it possible to redirect to an absolute address and would this be a better option considering REQUEST_URI will always be correct on different domains?

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Answer:

You need to have an absolute address for the redirect, like:

/account/user/1/jason

or

http://domain.com/accounts

A relative link makes no sense here:

somewhere/link as it does not specify where this 'location' is to the browser.

Keep in mind the redirect() is a HEADER REDIRECT (by default) Read about it here:http://codeigniter.com/user_guide/helpers/url_helper.html