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nginx + php-fpm - where are my $_GET params?

Posted by aegis 
nginx + php-fpm - where are my $_GET params?
February 05, 2011 10:21AM
Hello everyone,
I have a strange problem here. I just moved from apache + mod_php to nginx + php-fpm. Everything went fine except this one problem.

I have a site, let's say example.com. When I access it like `example.com?test=get_param` `$_SERVER['REQUEST_URI']` is `/?test=get_param` and there is a `$_GET['test']` also.

But when I access `example.com/ajax/search/?search=get_param` `$_SERVER['REQUEST_URI']` is `/ajax/search/?search=get_param` yet there is no `$_GET['search']` (there is no `$_GET` array at all).

I'm using Kohana framework. which routes `/ajax/search` to controller, but I've put `phpinfo()` at `index.php` so I'm checking for `$_GET` variables before framework does anything (this means that disapearing get params aren't frameworks fault).

My nginx.conf is like this

worker_processes 4;
pid logs/nginx.pid;
events {
worker_connections 1024;
http {
index index.html index.php;
autoindex on;
autoindex_exact_size off;
include mime.types;
default_type application/octet-stream;
server_names_hash_bucket_size 128;
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 logs/access.log main;
error_log logs/error.log debug;

sendfile on;
tcp_nopush on;
tcp_nodelay off;

keepalive_timeout 2;

gzip on;
gzip_comp_level 2;
gzip_proxied any;
gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript;

include sites-enabled/*;

and example.conf is like this

server {
listen 80;
server_name www.example.com;
rewrite ^ $scheme://example.com$request_uri? permanent;

server {
listen 80;
server_name example.com;
root /var/www/example/;

location ~ /\. {
return 404;

location / {
try_files $uri $uri/ /index.php;

location ~ \.php$ {
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include /usr/local/nginx/conf/fastcgi_params;

location ~* ^/(modules|application|system) {
return 403;

# serve static files directly
location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico|html|xml|txt)$ {
access_log off;
expires 30d;

fastcgi_params is like this

fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;

fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;

fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;

fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;

# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param REDIRECT_STATUS 200;

fastcgi_connect_timeout 60;
fastcgi_send_timeout 180;
fastcgi_read_timeout 180;
fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k;
fastcgi_intercept_errors on;

fastcgi_param QUERY_STRING $query_string;
fastcgi_param PATH_INFO $fastcgi_path_info;

What is the problem here?

By the way there are few more sites on the same server, both Kohana based and plain php, that are working perfectly.
Re: nginx + php-fpm - where are my $_GET params?
February 05, 2011 11:40AM
Trough error and trial i've found the answer :)
instead of
location / {
try_files $uri $uri/ /index.php;
it must be
location / {
try_files $uri $uri/ /index.php?$args; #or /index.php?$query_string, mind the '?'
can someone explain why my other sites or the sames site root page works without this (?$args), but this one (example.com/ajax/search?test=get_param) doesn't?
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