r::data PHP Method

    static function data()
    {
        if (self::$_) {
            return self::$_;
        }
        return self::$_ = self::sanitize($_REQUEST);
    }

 public function values($values = null)
 {
     if (is_null($values)) {
         return array_merge($this->values, r::data());
     }
     $this->values = array_merge($this->values, $values);
     return $this;
 }