location ~ /blocktest/.*\.php$
        {
                if ($remote_addr != "1.1.1.1")
                {
                        return 503;
                }

                include /usr/local/nginx/conf/php.conf;
        }

        location ~ /blocktest/
        {
                if ($remote_addr != "1.1.1.1")
                {
                        return 503;
                }
        }