nginx rewrite sub url - nginx

Question

How can I solve this problem: I want to set up nginx conf file to meet below criteria:
http://www.example.com/site1/article/index.php?q=hello-world -> http://www.example.com/site1/article/hello-world
httb://www.example.com/site2/article/index.php?q=goodbye-world -> httb://www.example.com/site2/article/goodbye-world
httb://www.example.com/site3/article/index.php?q=open-new-world -> httb://www.example.com/site3/article/open-new-world
There are multiple sites after example.com, I want to make the url look clean by using nginx configuration.
But my below configuration doesn't work. Someone help me?
server {
listen 80;
listen [::]:80;
root /var/www/example.com/public_html;
index index.php index.html index.htm;
server_name www.example.com;
location ~ /article/ {
try_files $uri /site1/article/index.php?q=$1;
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
}
}
}

Answer 1

You would like the client to present a URL like /xxx/article/yyy which is then internally rewritten to /xxx/article/index.php?q=yyy.
You need to capture the components of the source URI in order to use them later. You have a $1 in your question, but you are missing the expression to actually give it a value. With the minimum number of changes, this works:
location ~ ^(.*/article/)(.*)$ {
try_files $uri $1index.php?q=$2;
location ~ \.php$ { ... }
}
However, you do not need to use a nested location for PHP, as long as the PHP regex location appears above the other regex location, it will process all php files. For example:
location ~ \.php$ { ... }
location ~ ^(.*/article/)(.*)$ {
try_files $uri $1index.php?q=$2;
}