Codeigniter Arabic language and rtl (right to left) stylesheet - codeigniter

Question

I have a bilingual site, English and Arabic. Default language is Arabic and default loaded style.css is rtl. I switch the language with session and the translated text from language folder works correctly.
But for the second language (English) I have some issues:
When I am in About page and I switch language is goes to main page . How I can redirect to same page where I've been before switching language.
My function to switch language is:
public function change($type){
$this->session->set_userdata('lang', $type);
redirect(base_url());
}
After switching the language I need that also the stle.css for English language gets loaded.

Answer 1

In order to send the user to the same page between languages, you need to check which page the user is browsing, before invoking your function change($type)
You can get the current link like this:
$current_url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
the redirect depends how your multi-language site is designed. It could be:
yoursite.com/ar
yoursite.com/en
or
en.yoursite.com
ar.yoursite.com
anyway basically you'll need to replace en with ar
the css change is easy to perform, just make use of the session you have created just before the redirect:
in the view file where you load the css, load the version depending on the session value of lang, make sure you use the default css, in case there is no session set (yet).