server {
    listen              127.0.0.1:12345;
    root                /PATH/TO/examples/hello_world/public;
    index               index.php;

    location @default {
        include        fastcgi_params;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_param  SCRIPT_FILENAME    /PATH/TO/examples/hello_word/index.php;
    }

    location / {
        try_files $uri @default;
    }
}

php -q examples/hello_world/server.php start