Where to create .htaccess file?

Question

Apache HTTP Server

I want that when loading a file, for example, auth.php, it is not necessary to add its extension in the address bar, and I created a .htaccess file in the /var/www directory and added the code there: RewriteRule ^(([^/]+/)*[^.]+)$ /$1.php [L]
but it does not work when trying to load the page site.ru/auth file auth.php does not open, although it works with the full address site.ru/auth.php
the question is, did I create .htaccess in the right place and did I find the right code?

Answer 1

You created the file in the correct directory, but you wrote the redirect regular expression incorrectly.
It is necessary, for example, like this: RewriteRule ^([a-zA-Z]+)$ /$1.php [L]
Regex101