public function noHTML($complete = false)
    {   // Disallow: $, ", ', <, >
        $array = [];
        $fn = $this->closure_array_walk(function ($key) use (&$array) {
            return $array[] = htmlspecialchars($key);
        });

        if ($complete) {
            return $fn($array);
        }

        return $this;
    }