Redirect to dynamic relative paths with .htaccess?

Question

Is it possible to make .htaccess "understand" dynamic relative paths and redirect to them properly?

My setup goes as follows:

http://domain.com/htroot/aaa/xyz
http://domain.com/htroot/bbb/xyz
http://domain.com/htroot/ccc/xyz

And so on. For the sake of the example, "htroot" contains the .htaccess I need to modify. The following sublevels (aaa, bbb, ccc) can be any a-z0-9 name, and the folders have an index.php (or any other .php to be redirected to). The xyz should work as a parameter of sorts, see next part. The xyz part is nowhere on the filesystem as a "physical" folder or file.

What I need to achieve is the following: When you access with the url

http://domain.com/htroot/aaa/xyz

it gets content from

http://domain.com/htroot/aaa/ (or http://domain.com/htroot/aaa/index.php, either way)

where the index.php kicks in -> I can get the xyz parsed from REQUEST_URI and process it to serve the correct content that it specifies, while the URL of the page stays as http://domain.com/htroot/aaa/xyz, naturally.

So far I have managed to pull this off if every sublevel (aaa etc.) has it's own .htaccess, but I would need one where there is only a single .htaccess located in htroot that handles this. I'm guessing it might have something to do with the $0 parameters in .htaccess, but not sure.

Answer 1

You may want to perform something like this:

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/(.*)$ /htroot/$1/index.php?data=$2 [L]

If the first wildcard match (.*) is aaa and the second wildcard match (.*) is xyz (htroot/aaa/xyz) it will get the content from

htroot/aaa/index.php?data=xyz

and you will be able to get the value xyz in index.php with $_GET['data']

Answer 2

OK, there's something I don't understand in the way it works, I guess I still have a lot to learn about mod_rewrite.

But like this in htroot/.htaccess file, it works:

RewriteEngine On
RewriteRule ^aaa/(.*)$ aaa/index.php?$1 [L,QSA]
RewriteRule ^bbb/(.*)$ bbb/index.php?$1 [L,QSA]
RewriteRule ^ccc/(.*)$ ccc/index.php?$1 [L,QSA]

You will be able to access $_GET['xyz'] or whatever you put after / in your index.php scripts. You will also get a bonus 'index_php' entry in the $_GET array, but I guess it's the way the internal redirect works.

Answer 3

This should work as a generic ruleset:

RewriteEngine On
RewriteCond %{REQUEST_URI} !\.php 
RewriteRule ^(.*)/(.*) /htroot/$1/index.php?parameters=$2 [L,QSA]