NginX Configuration for removing public and index, laravel in sub directory

laravel-nginx-sub-directory-conf

#The are a lot of methods to separate configuration of laravel in nginx. It is only one of them but not the best. 
#Configuration for removing public and index in laravel or lumen that run on nginX
#This configuration implemented in ubuntu server
#We can copy this code directly to "/etc/nginx/site-enabled/default"
#or you can separate this file, to reduce complexity / large code in file "/etc/nginx/site-enabled/default"

#directory name
location /dir {

          #we point the alias to the lavel public directory
          #project root
          alias /var/www/dir/public;
          
          #calling the location defined below
          try_files $uri $uri/ @dir_location;
          
          #PHP configuration
          location ~ \.php$ {
              include snippets/fastcgi-php.conf;
              fastcgi_param SCRIPT_FILENAME $request_filename;
              fastcgi_pass unix:/var/run/php/php7.1-fpm.sock;
          }

 }

#define location
location @dir_location {
          rewrite /dir/(.*)$ /dir/index.php?/$1 last;
}