serve pages from directory according to subdomain name

subdomain.conf

server {
        listen 80 ;

	      #server_name ~^(www\.)?(?<sname>.+?).<ip>.xip.io$;

        server_name ~^(?<sname>.+?).<ip>.xip.io$;
        root /var/www/html/review.anipat/$sname;

        index index.php index.html index.htm index.nginx-debian.html;

        location / {
                try_files $uri $uri/ /index.php?$query_string;
        }

        # pass PHP scripts to FastCGI server
        #
        location ~ \.php$ {
                include snippets/fastcgi-php.conf;
        #
        #       # With php-fpm (or other unix sockets):
                fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        }

        location ~ /\.ht {
                deny all;
        }
}

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