以下载方式提供 PHP 文件，而不是执行它们

我最近在我的机器上安装了 nginx 和 php 7.0.16，但由于某种原因 nginx 下载 php 文件，而不是执行它们。我已经花了几天时间并实施了在线提供的所有解决方案，但一切都是徒劳的。

我的 nginx.conf 是：

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/*;
}

conf.d 文件夹中没有文件，sites-enabled 只有默认文件，如下所示

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;
}

有人可以建议一下，可能是什么问题吗？

找到了解决方案。问题出在 nginx.conf 文件中。

替换了以下行：

default_type        application/octet-stream;

with:

default_type        text/html;