当使用index.php文件作为默认页面时，在本地机器的nginx服务器下运行多个路径，502坏网关

Question

我尝试设置一个运行不同路径到nginx.conf的网站，我在nginx conf下测试了3个位置，一个是node.js网络应用程序，一个是php论坛，最后一个是phpmyadmin和它工作正常。问题出在我的论坛应用上。 index.php文件在我测试时会显示502坏网关，但是当我使用index.html时它会起作用。以下是配置文件，有关此设置的任何想法？

nginx.conf

server {
listen       80;
server_name  localhost;

location / {
    proxy_pass http://nodejs;
}

location /forum {
    root  /parent/path/of/the/folder/;
    index index.php index.html;
        location ~ \.php$ {
        fastcgi_pass   127.0.0.1:9000;
        include        fastcgi.conf;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
}


location /phpmyadmin3 {

  root  /usr/local/share;
  index index.php;
  # try_files $uri $uri/ /phpmyadmin/index.php$args$is_args;
        location ~ \.php$ {
        fastcgi_pass   unix:/path/to/.valet/valet.sock;
        include        fastcgi.conf;
        fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
}

}

更新

nginx.conf

server {
listen       80;
server_name  localhost;

location / {
    proxy_pass http://nodejs;
}

location /forum {
    root  /parent/path/of/the/folder/;
    index index.php index.html;
}


location /phpmyadmin3 {
  root  /usr/local/share;
  index index.php;
  # try_files $uri $uri/ /phpmyadmin/index.php$args$is_args;
}

location ~ \.php$ {
  fastcgi_pass   unix:/path/to/.valet/valet.sock;
  include        fastcgi.conf;
  fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
}