How to remove a ".php" extension and add "/" at the end of the URL?

Question

I would like to know how I can rewrite the following URL:

mydomain.com/service-demo.php

so that it can be accessed using one of:

mydomain.com/service-demo/
mydomain.com/service-demo
mydomain.com/service-demo.php

but always show this:

mydomain.com/service-demo/

Answer 1

create a new file (.htaccess ) in root folder and write this codes

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [NC,L]