how to clean url from subfolders in php using .htaccess file [duplicate]

I want to remove Paramters from URL and make clean URL for SEO from example.com/eco/cur/in.php?name=an to
example.com/eco/cur/in/an. I have used so many examples but it wont work for my pages, I have sub folders like in subfolders and in the internet they give example only to root directory index pages I want sub directory example to my project. I have used HTACCESS file to remove .PHP extension but its not working for parameters. thank you