Rewriting subdomains to the Document Root in Nginx

nginx.conf

# http://www.nigeldunn.com/2011/06/30/rewriting-subdomains-to-the-document-root-in-nginx/

# hosts file: 127.0.0.1       proje.sineld.se proje2.sineld.se



server {
    server_name ~^(.+)\.sineld\.se$;

    set $file_path $1;

    autoindex on;
    autoindex_exact_size off;

    root    /home/sineld/www/$file_path/public_html;
    error_log /var/log/nginx/$file_path-error.log;
 
    location / {
        try_files   $uri $uri/ /index.php?$query_string;
        index index.html index.php;
    }

    if (!-d $request_filename) {
        rewrite ^/(.+)/$ /$1 permanent;
    }

    location ~ /\.ht {
        deny all;
    }

    location ~ \.php$ {
        fastcgi_pass  unix:/var/run/php5-fpm.sock;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }
}