htaccess rename index.php to show as friendly name in URL for SEO

folder structure is like so:

• domain

•  -->folder
  

•     -->subfolder
  

•         -->index.php
  

•         -->another-file.php
  

What I want is when I go to /folder/subfolder which loads index.php by default, instead will show /folder/subfolder/more-readable-name-of-my-choosing in the URL.

I have tried doing things like:

RewriteRule ^folder/subfolder/index.php  /folder/subfolder/more-readable-name-of-my-choosing

but I haven't quite figured out the correct pattern yet.

Alternatively, I can rename the index file to more-readable-name-of-my-choosing.php, then I would need to figure out how to redirect to that when I go to /folder/subfolder/ without blocking me from getting to my other files in the subfolder

source https://stackoverflow.com/questions/77404716/htaccess-rename-index-php-to-show-as-friendly-name-in-url-for-seo