Example of current file structure:

example.com/foo.php
example.com/bar.html
example.com/directory/
example.com/directory/foo.php
example.com/directory/bar.html
example.com/cgi-bin/directory/foo.cgi

I want to remove HTML, PHP and CGI extensions from, and then force the trailing slash at the end of URLs. So, it could look like this:

example.com/foo/
example.com/bar/
example.com/directory/
example.com/directory/foo/
example.com/directory/bar/
example.com/cgi-bin/directory/foo/

I've searched for solution for 17 hours straight and visited more than a few hundred pages on various blogs and forums. I'm not joking. So I think I've done my research.

Here is the code that sits in my .htaccess file right now:

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.html -f
RewriteRule ^(([^/]+/)*[^./]+)/$ $1.html
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !(\.[a-zA-Z0-9]|/)$
RewriteRule (.*)$ /$1/ [R=301,L]

As you can see, this code only removes .html (and I'm not very happy with it because I think it could be done a lot simpler). I can remove the extension from PHP files when I rename them to .html through .htaccess, but that's not what I want. I want to remove it straight. This is the first thing I don't know how to do.

The second thing is actually very annoying. My .htaccess file with code above, adds .html/ to every string entered after example.com/directory/foo/. So if I enter example.com/directory/foo/bar (obviously /bar doesn't exist since foo is a file), instead of just displaying message that page is not found, it converts it to example.com/directory/foo/bar.html/, then searches for a file for a few seconds and then displays the not found message. This, of course, is bad behavior.

So, once again, I need the code in .htaccess to do the following things:

• Remove .html extension
• Remove .php extension
• Remove .cgi extension
• Force the trailing slash at the end of URLs
• Requests should behave correctly (no adding trailing slashes or extensions to strings if file or directory doesn't exist on server)
• Code should be as simple as possible

I would very much appreciate any help. And to first person that gives me the solution, I'll send two $50 iTunes Store gift cards for US store. If this offend anyone, I am truly sorry and I apologize.

Thanks in advance. And sorry for such a long post.