htaccess URL rewriting

Question

I want to redirect a request look like

mydomain.com/abc/def

to

mydomain.com/abc/index.php?q=def

where abc is a fixed directory name and def can be any string.

How can I do this using .htaccess?

Answer 1

In .htaccess put:

Options +FollowSymLinks
RewriteEngine on

RewriteCond %{QUERY_STRING} !id=
RewriteRule ^abc/(.+) /abc/index.php?id=$1 [NC,L]

Note that I included a check for the presence of the id query string parameter to prevent the url http://mysite.com/abc/index.php?id=def from being rewritten.