How to set subfolder in nginx-CodePudding

Im trying to set index.php file in my html folder as localhost:5555 and my second index.php file in html/highlighter folder as localhost:5555/highlighter with first everything okay, but with second one not, when i go to localhost:5555/highlighter it prints 404 Not Found
Can you help me?
My folders tree:

nginx
│ 
├── html
│   ├── 50x.html
│   ├── highlight
│   │   ├── functions.php
│   │   ├── icon.png
│   │   ├── index.css
│   │   ├── index.php
│   └── index.php
├── nginx.exe

nginx.conf

worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;

    server {
        listen       5555;
        server_name  localhost;

        location / {
            root   html;
            index  index.php;
        }
        
        location /highlighter {
            root html/highlight;
            index index.php;
        }
        
        location ~ \.php$ {
            fastcgi_pass   127.0.0.1:9123;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

UPDATE
My mistake was adding 2 roots in location blocks, if you have same error, try move root from location block like this

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       5555;
        server_name  localhost;

        root   "D:\\Miscellaneous\\nginxSites";
        
        location / {
            index  index.php;
        }
        
        location /highlighter {
            index  index.php;
        }
        
        location ~ \.php$ {
            fastcgi_pass   127.0.0.1:9123;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

CodePudding user response：

try

location /highlighter {
            alias /var/www/html/highlighter/;
                index index.php index.html;
                #try_files $uri $uri/ =404;
                try_files $uri $uri/ /highlighter/index.php;
        }

hope it helps. Please revert here if it not resolve your problem.