nginx alias php config

nginx.config

server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;
#       rewrite ^(.*) http://localhost$1 permanent;

        root /var/www;
        index index.php index.html index.htm;

        # Make site accessible from http://localhost/
        server_name localhost;

        location ~ \.php$ {
                try_files $uri =404;
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $request_filename;
                include fastcgi_params;

        }


        location /blog {
                alias /var/www/projects/blog/app/webroot/;
                location ~ \.php$ {
                        fastcgi_pass unix:/var/run/php5-fpm.sock;
                        fastcgi_index index.php;
                        fastcgi_param SCRIPT_FILENAME $request_filename;
                        include fastcgi_params;

                }
        }

        location / {
                try_files $uri $uri/ =404;
        }

        #error_page 404 /404.html;

        location ~ /\.ht {
                deny all;
        }
}

Anyone have a better solution?