OK I tried a different approach, not sure if this is ok.
What I did:
1. made a folder named testing
2. made a file named index.php inside testing folder
3. made an anchor on another page that points to just the folder: 'testing/'
4. It opens a page but it just displays ...testing/ on the URL
I know the file name is index.php but does it matter? It is still a page and it does display the folder name alone. I mean the output looks the same.
Well, this is all I can think of right now, sorry if it doesnt work for you.