Serving PHP files as downloads, instead of executing them

Question

I recently installed nginx and php 7.0.16 in my machine, but for some reason nginx downloads php files, rather than executing them. I've already spent couple of days and implemented all solutions available online, but all in vain.

My nginx.conf is:

worker_processes 4;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.fedora.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

There is no file in conf.d folder and sites-enabled has only default file that looks like below

server {
    listen 80;
    server_name infrastructure;
    root /home/infra/index;
    index index.php index.html index.htm;
    #return 301 https://$server_name$request_uri;

    location / {
        try_files $uri $uri/ = 404;
    }

    # pass the PHP scripts to FastCGI server listening on the php-fpm socket
    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;
        fastcgi_pass unix:/var/run/php-fpm.sock;
        fastcgi_index index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    error_page 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 10;
}

Can someone please advise, what could be the problem?

Answer 1

Found the solution. The problem was in nginx.conf file.

Replaced following line:

default_type        application/octet-stream;

with:

default_type        text/html;