How do I write an .htaccess rewrite rule to convert query strings into segmented URIs?

Question

Is there a way to put a rewrite rule in htaccess that will convert query strings to segmented URIs? For eg.

http://domain.com/controller/method/?a=1&b=2&c=3

should get rewritten as

http://domain.com/controller/method/a/1/b/2/c/3

All there is to do is remove the ? and replace the &s and the =s with a /, but I'm not quite sure how all that figures into .htaccess...

Not that it'd matter, but I'm using PHP and CodeIgniter on Apache.

Answer 1

Why don't you put that logic inside your CodeIgniter controller instead of doing it in .htaccess ?

Check CodeIgniter's User Guide for handling Query Strings and URLs.

Answer 2

If you want to do it in the .htaccess you need to have mod_rewrite.

The rule is not too difficult. I give you a minimal example, and you need to tune the regex up to fix your need.

RewiteRule ^/([a-z]+)/([a-z]+)$ /method/?$1=$2

Answer 3

This is what you could do:

RewriteCond %{THE_REQUEST} ^GET\ /[^?]*\?
RewriteCond %{QUERY_STRING} ^([^&=]+)=?([^&]*)&([^&=]+)=?([^&]*)&?(.*)
RewriteRule ^ %{REQUEST_URI}/%1/%2/%3/%4?%5 [L]
RewriteCond %{THE_REQUEST} ^GET\ /[^?]*\?
RewriteCond %{QUERY_STRING} ^([^&=]+)=?([^&]*)&?(.*)
RewriteRule ^ %{REQUEST_URI}?/%1/%2?%3 [L]