Nginx Serves. Php Files as Downloads, Instead of Executing Them

I had similar problem which was resolved by emptying the browser cache (also worked fine with different browser).

You need to add this to /etc/nginx/sites-enabled/default to execute php files on Nginx Server:

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

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

    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

I see a lot of solutions above and many worked correctly for me, but I didn't understand what they were doing and was worried of just copy pasting the code, specifically, fastcgi. So here are my 2 cents,

1. nginx is a web server (and not an application server) and thus, it can only serve static pages.
2. whenever, we try rendering/returning a .php file, for example index.php, nginx doesn't know what to do, since it just can't understand a .php file (or for that matter any extension apart from a select few like .html, .js etc. which are static files)
3. Thus in order to run other kinds of files we need something that sits between nginx and the application (here the php application). This is where common gateway interface (CGI) comes in. It's a piece of software that manages this communication. CGIs can be implemented in any possible language Python (uWSGI), PHP (FPM) and even C. FastCGI is basically an upgraded version of CGI which is much much faster than CGI.

For some, servers like Apache, there is built in support to interpret PHP and thus no need for a CGI.

This digital ocean link, explains the steps to install FPM pretty well and I am not writing the steps needed to solve the issue of php files getting downloaded instead of rendering since the other answers IMHO pretty good.

Update nginx config /etc/nginx/sites-available/default or your config file

if you are using php7 use this

    location ~ \.php$ {
            include snippets/fastcgi-php.conf;
            fastcgi_pass unix:/run/php/php7.0-fpm.sock;      
    }

if you are using php5 use this

    location ~ \.php$ {
            include snippets/fastcgi-php.conf;
            fastcgi_pass unix:/run/php/php5-fpm.sock;
            fastcgi_index index.php;
            include fastcgi_params;
    }

Visit here for complete detail Detail here

I had the same issue and none of the answers solved the problem.

I ran:

sudo nginx -t

to test the config file at /etc/nginx/sites-available/default.

It gave me these errors:

nginx: [emerg] unexpected end of file, expecting "}" in /etc/nginx/sites-enabled/default:115
nginx: configuration file /etc/nginx/nginx.conf test failed

So I went into the config file and on the last line there was

#}

I uncommented, ran the test command again and it worked

This workded for me.

1) MyApp file

vi /etc/nginx/sites-available/myApp

server {
  listen 80;
  listen [::]:80;

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

  location ~ \.php$ {
      try_files $uri =404;
      fastcgi_split_path_info ^(.+\.php)(/.+)$;
      fastcgi_pass unix:/run/php/php7.0-fpm.sock;
      fastcgi_index index.php;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
          include fastcgi_params;
      }
}

PHP5 users

Change

fastcgi_pass unix:/run/php/php7.0-fpm.sock;

to

fastcgi_pass unix:/var/run/php5-fpm.sock;

2) Configure cgi.fix_pathinfo

Set cgi.fix_pathinfo to 0

Location:

PHP5 /etc/php5/fpm/php.ini

PHP7 /etc/php/7.0/fpm/php.ini

3) Restart services

FPM

php5 sudo service php5-fpm restart

php7 sudo service php7.0-fpm restart

NGINX

sudo service nginx restart

For me it helped to add ?$query_string at the end of /index.php, like below:

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

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

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

    location ~ \.php$ {
            include snippets/fastcgi-php.conf;
            fastcgi_pass unix:/run/php/php7.2-fpm.sock;
    }
}

The above snippets worked for me in case of php7.2

If any of the proposed answers is not working, try this:

1.fix in etc/php5/fpm/pool.d:

listen = 127.0.0.1:9000;(delete all line contain listen= )