Wordpress & Codeigniter NGINX

codeigniter

  index index.php index.html index.htm;

	# enforce www (exclude certain subdomains)
	#if ($host !~* ^(www|subdomain))
	#{
	#	rewrite ^/(.*)$ $scheme://www.$host/$1 permanent;
	#}

	# enforce NO www
	#if ($host ~* ^www\.(.*))
	#{
	#	set $host_without_www $1;
	#	rewrite ^/(.*)$ $scheme://$host_without_www/$1 permanent;
	#}

	# canonicalize codeigniter url end points
	# if your default controller is something other than "welcome" you should change the following

	if ($request_uri ~* ^(/pg(/index)?|/index(.php)?)/?$)
	{
		rewrite ^(.*)$ / permanent;
	}

	# removes trailing "index" from all controllers
	if ($request_uri ~* index/?$)
	{
		rewrite ^/(.*)/index/?$ /$1 permanent;
	}

	# removes trailing slashes (prevents SEO duplicate content issues)
	if (!-d $request_filename)
	{
		rewrite ^/(.+)/$ /$1 permanent;
	}

	# removes access to "system" folder, also allows a "System.php" controller
	if ($request_uri ~* ^/system)
	{
		rewrite ^/(.*)$ /index.php?/$1 last;
		break;
	}

	# unless the request is for a valid file (image, js, css, etc.), send to bootstrap
	if (!-e $request_filename)
	{
		rewrite ^/(.*)$ /index.php?/$1 last;
		break;
	}

	# catch all
	error_page 404 /index.php;

	# deny access to apache .htaccess files
	location ~ /\.ht
	{
		deny all;
	}

wordpress

location / {
  try_files $uri $uri/ /index.php?q=$uri&$args;
}
rewrite ^.*/files/(.*) /wp-includes/ms-files.php?file=$1;