Ngnix - FastCGI sent in stderr: "PHP message: PHP Notice: Undefined variable

Question

I've installed an Ngnix server and configured it like:

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

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

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

    location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            try_files $uri $uri/ =404;
            # Uncomment to enable naxsi on this location
            # include /etc/nginx/naxsi.rules
    }

    # Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
    #location /RequestDenied {
    #       proxy_pass http://127.0.0.1:8080;    
    #}
    # redirect server error pages to the static page /50x.html
    #
    error_page 500 502 503 504 /50x.html;
    location = / {
      # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    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;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include fastcgi_params;
    }

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #       deny all;
    #}

}

I'm getting these errors (copied from my error.log) :

    *9 FastCGI sent in stderr: "PHP message: PHP Notice:  Undefined variable: confMsg in /usr/share/nginx/html/admin-interface/login.php on line 196" while reading upstream, client: 127.0.0.1, server: localhost, request: "GET /admin-interface/login.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "localhost"

2015/12/16 00:27:37 [error] 952#0: *9 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: username in /usr/share/nginx/html/admin-interface/login.php on line 245 PHP message: PHP Notice: Undefined index: username in /usr/share/nginx/html/admin-interface/login.php on line 249" while reading upstream, client: 127.0.0.1, server: localhost, request: "GET /admin-interface/login.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "localhost"

I'm trying to configure this environment using an Ngnix server, this environment does work using different hosting. I did change the cgi.fix_pathinfo = 0 in my php.ini

What am i missing with my configuration?

Answer 1

It's not an error, it's a notice.

The script /usr/share/nginx/html/admin-interface/login.php is accessing the variable $confMsg which does not exist at that point.

You can either change the error reporting level in php.ini (which has impact on other scripts too and you don't want to turn off notices..) or fix the wrong variable access in the script.

The second solution would be easier because you'd just had to initialize $confMsg = '';.