NGINX: route to index.php within alias for specific path component with query string

Venu asked:

This is legacy app (Zend framework 1), we are moving from apache to nginx. We have front controller which dispatches to specific controller/action based on request URI.

Requirement

 1. www.example.com         --> /home/user/www/public/index.php
 2. www.example.com/a/b     --> /home/user/www/public/index.php
 3. www.example.com/api     --> /home/user/api/public/index.php
 4. www.example.com/api/a/b --> /home/user/api/public/index.php
 5. www.example.com/api/a/b?x=1 --> /home/user/api/public/index.php

Current Config

    location /api {
            alias /home/user/api/public/;
            try_files $uri /api/index.php;
             location ~ \.php$ {
                fastcgi_split_path_info ^(.+\.php)(/.+)$;
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                include /etc/nginx/fastcgi_params;
            }           

}

Here is what PHP scripts receives

array
(
    [USER] => www-data
    [HOME] => /var/www
    [FCGI_ROLE] => RESPONDER
    [SCRIPT_FILENAME] => /home/user/api/public//index.php
    [QUERY_STRING] => 
    [REQUEST_METHOD] => GET
    [CONTENT_TYPE] => 
    [CONTENT_LENGTH] => 
    [SCRIPT_NAME] => /api/index.php
    [REQUEST_URI] => /api/account/get?id=1
    [DOCUMENT_URI] => /api/index.php 
...
)

Problem
Above config is working fine. But query string is missing, so $_GET is empty.

Hack: Generate $_GET from Request URI before front controller dispatches.

$arr = explode("?",$_SERVER['REQUEST_URI']);
if (count($arr) == 2 && count($_GET) == 0){
    parse_str($arr[1], $_GET);
} 

But I would like fix this at server level, please tell me how to pass query string in this case. Thanks in advance.

My answer:


You need to check that /etc/nginx/fastcgi_params is as shipped by the vendor, and has not been altered in any way. If it has been changed at all, you should restore a clean copy.


Also, when using alias in a location, you need to have matching trailing slashes.

You currently have:

    location /api {
            alias /home/user/api/public/;

But this should be:

    location /api/ {
            alias /home/user/api/public/;

Without this, depending on which trailing slash is missing, URLs may have double slashes (which Linux doesn’t care about, but web applications might) or URLs may not have a slash at all (which always breaks).


View the full question and answer on Server Fault.

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