在smarty中检索链接的一部分

I have the following link:

http://anydomainname.com/user/username/about

I know that $smarty.server.REQUEST_URI will return user/username/about.

But I can't find a way to return the latest part of my link which is about.

How can I return it? I prefer a solution that does not require me to alter or add new functions in .php files.

Here's an alternative to Marcin's answer using PHP's basename() function instead of substr/strrpos:

{$smarty.server.REQUEST_URI|basename}

You can use:

{$smarty.server.REQUEST_URI|substr:($smarty.server.REQUEST_URI|strrpos:'/'+1)}

It finds the last / in this string and return everything after it.

It is working in Smarty 3.1.19