Example NGINX config file which loads different PHP-FPM apps from subdirectories

nginx-multiple-php-apps-in-subdirs.conf

server {
    listen       80 default_server;
    listen       [::]:80 default_server;
    server_name  _;
    root         /home/app/html/public;
    index        index.php index.html index.htm;

    # Load configuration files for the default server block.
    include /etc/nginx/default.d/*.conf;

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

    location /forum {
        alias /home/forum/html;
        try_files $uri $uri/ /index.php?uri=$query_string;
    }

    location ~ /forum/.+\.php$ {
        try_files $uri /index.php =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php70-fpm-forum.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /home/forum/html$fastcgi_script_name;
        include fastcgi_params;
    }

    location ~ \.php$ {
        try_files $uri /index.php =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php70-fpm-app.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}