使用Apache mod_rewrite或PHP在目录名前插入哈希？

I have a URL that is like the following:

http://www.example.com/client/project/subdirectory/value/

I would like like a simple way to be able to change/redirect the URL to the following:

http://www.example.com/client/project/#/subdirectory/value/

Once the redirect is complete, the hash needs to be accessible via JavaScript. I'm okay with a full refresh/redirect, just ideally that I write this once and don't have to change it again.

In other words, when the site goes live, the URLs will be structured differently, so that:

http://www.example.com/subdirectory/value/

Will change to:

http://www.example.com/#/subdirectory/value/

Edit:

I have tried using this: RewriteRule ^profile/?$ #/profile/ [ NC,L]

Which doesn't seem to do anything

Also tried this: RewriteRule ^profile/?$ /#/profile/ [NC,L]

Which takes me to the root directory

Also tried this: RewriteRule ^profile/?$ #/profile/ [R,NC,L]

Which adds the whole root path to the server, followed by /%23/profile/

If you have a URL like the following:

http://localhost/tests/redir/subdirectory/value/

And you want to get it redirected to:

http://localhost/tests/redir/#/subdirectory/value/

Place a .htaccess file into the directory of tests/redir with the following:

RewriteEngine On
RewriteBase /tests/redir
RewriteRule ^(.*/)$ #/$1 [R,L,NE]

And you will get the wanted redirect. The R flag plays together with the RewriteBase directive. Also the NE flag is necessary so that you can put # literally into the redirect URI.

The hash is already used by page anchor tags. You might need to replace it with an entity or pick a better character.