Redirect in Codeigniter

Question

I have a paginated display in which on each page call I set the current URI string into a session (in my controller).

$current = $this->uri->uri_string(); $this->session->set_userdata('return_to', $current);

From the view the user can click a link to go somewhere else (an edit form), which when submitted (and form validation is correct) I want to return to the correct page of the paginated results.

if($this->form_validation->run('edit') == TRUE ) { $back_to = NULL; $back_to = '/'.$this->session->userdata('return_to'); .... redirect($back_to); }

Seems to work sometimes in Firefox but dies in Chrome, redirect to favicon.ico

Any and all help appreciated

UPDATE: My problem isn't due to relative/absolute addresses, for some weird reason in the second controller the redirect aims to favicon.ico, not what was stored in the session.

Perhaps $back_to = site_url() . $this->session->userdata('return_to');? — stealthyninja
– stealthyninja, Commented Dec 1, 2011 at 16:41
Having same problem it's been hours :( Have you find any solution? — YahyaE
– YahyaE, Commented Mar 30, 2015 at 17:27
Found the answer here : stackoverflow.com/questions/20300311/… — mrbm
– mrbm, Commented Jul 4, 2016 at 14:12

Damien Pirsy · Accepted Answer · 2011-12-01 19:46:47Z

if($this->form_validation->run() == TRUE ) { if($this->session->userdata('return_to') { redirect($this->session->userdata('return_to')); } else { redirect(base_url()); // or trigger some error } }

Don't need to assign a variable, redirect() uses both a full url and a segmented url (much like site_url(), which is exactly what is returned by uri_string().

So if this doesn't work, it's likely your session is not set or expired. Also, consider that CI's sessions are cookies , so a browser can has its role in here.

Sean H Jenkins · Accepted Answer · 2011-12-01 16:43:35Z

I would use an absolute URL and not a relative one.

Try this

if($this->form_validation->run('edit') == TRUE ) { $back_to = NULL; $back_to = 'http://www.mydomain.com/'.$this->session->userdata('return_to'); .... redirect($back_to); }

As stealthyninja pointed out it's probably better to use CodeIgniter's site_url() or base_url() instead of hard coding it. Set the site_url() in the config.php (i believe)

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