nginx dynamic root vhost conf

nginx_dynamic_root_vhost.conf

server {
  listen 80;

	server_name ~^(.*)\.local\.dev$;
	set $_document_root /opt/local/var/www/$1;
	set $_server_name $1.local.dev;

	# if directory doesn't exist
	if (!-e $_document_root) {
	    rewrite ^ http://localhost last;
	}

	# Sets the correct root
	root $_document_root;

	index index.php index.html index.htm;
	access_log off;

	try_files $uri $uri/ /index.php;

	location ~ \.php$ {
		try_files $uri =404;

		fastcgi_split_path_info ^(.+\.php)(/.+)$;
		include fastcgi.conf;
		fastcgi_param SERVER_NAME $_server_name;
		fastcgi_pass 127.0.0.1:9000;
		fastcgi_index index.php;
	}
}