Why is Nginx Serving My PHP Files as Downloads Instead of Executing Them?

Nginx Serving PHP Files as Downloads: Resolving the Execution Issue

When encountering situations where Nginx serves PHP files as downloads instead of executing them, it's essential to diagnose the underlying cause.

Checking Configuration Files:

• /etc/nginx/sites-available/default: Ensure that both IPv4 and IPv6 listen directives are uncommented. Also, verify that index.php is included in the index line.
• PHP Settings: Check /etc/php5/fpm/php.ini and confirm that cgi.fix_pathinfo is set to 0. This parameter prevents the web server from appending the file extension to the FastCGI URI.

Configuration Example:

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

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

        # Make site accessible from http://localhost/
        server_name localhost;

               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;
            }
  

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

Restart Services:

After making the necessary changes, restart both Nginx and php5-fpm using the following commands:

sudo service nginx restart
sudo service php5-fpm restart

Additional Considerations:

• Ensure that PHP is installed and configured correctly on the server.
• If the issue persists, check the error logs for any additional clues.

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