Nginx serves .php files as downloads, instead of executing them

I am installing a website in a droplet (Digital Ocean). I have an issue for install NGINX with PHP properly. I did a tutorial https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-ubuntu-14-04 but when I try to run some .php files it's just downloading it... for example... http://5.101.99.123/info.php it's working but... If I go to the main http://5.101.99.123 it's downloading my index.php :/

Any idea?

-rw-r--r--  1 agitar_user www-data   418 Jul 31 18:27 index.php
-rw-r--r--  1 agitar_user www-data    21 Aug 31 11:20 info.php

My /etc/nginx/sites-available/default

server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;

        root /var/www/html;
        index index.html index.htm index.php;

        # Make site accessible from http://localhost/
        server_name agitarycompartir.com;

               location ~ \.php$ {
                    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    ## NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
    #
    #               # With php5-cgi alone:
    #               fastcgi_pass 127.0.0.1:9000;
    #               # With php5-fpm:
                    fastcgi_pass unix:/var/run/php5-fpm.sock;
                    fastcgi_index index.php;
                    include fastcgi_params;
            }
  

              location / {
                    
                    try_files $uri $uri/ =404;
                    # Uncomment to enable naxsi on this location
                    # include /etc/nginx/naxsi.rules
            }

...

Other "locations" are commented on...

.

Try this:

1. Edit /etc/nginx/sites-available/default

2. Uncomment both listen lines to make Nginx listen on port 80 IPv4 and IPv6.

    listen   80; ## listen for ipv4; this line is default and implied
    listen   [::]:80 default_server ipv6only=on; ## listen for ipv6
   

3. Leave server_name alone

    # Make site accessible (...)
    server_name localhost;
   

4. Add index.php to the index line

    root /usr/share/nginx/www;
    index index.php index.html index.htm;
   

5. Uncomment location ~ \.php$ {}

    # pass the PHP scripts to FastCGI server listening on (...)
    #
    location ~ \.php$ {
            try_files $uri =404;
            fastcgi_split_path_info ^(.+?\.php)(/.+)?$;
            # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
   
            # With php5-cgi alone:
            #fastcgi_pass 127.0.0.1:9000;
            # With php5-fpm:
            fastcgi_pass unix:/var/run/php5-fpm.sock;
            fastcgi_index index.php;
            include fastcgi_params;
    }
   

6. Edit /etc/php5/fpm/php.ini and make sure cgi.fix_pathinfo is set to 0

7. Restart Nginx and php5-fpm sudo service nginx restart && sudo service php5-fpm restart

I just started using Linux a week ago, so I really hope to help you with this. I am using a nano text editor to edit the files. run apt-get install nano if you don't have it. Google it to know more.