Nginx hide .php file extension but make sure the home page -- index.php -- page works

hide-php-file-extension

# This is in the server {} section of the /sites-available domain
        location / {
          #notice the $uri space $uri/ space before the @ function for the re-writes
                try_files $uri $uri/ @extensionless-php;
                index index.html index.htm index.php;
        }

        location @extensionless-php {
                rewrite ^(.*)$ $1.php last;
        }