private function bring()
    {
        foreach ($this->_keptData as $key => $value) {
            $this->$key = $value;
        }
        //
        $this->_keyValue = $this->_keptData[$this->_keyName];
        //
        $this->_keptData = null;
        $this->_kept = false;
    }
private function bring()
    {
        foreach ($this->_keptData as $key => $value) {
            $this->$key = $value;
        }
        //
        $this->_keyValue = $this->_keptData[$this->_keyName];
        //
        $this->_keptData = null;
        $this->_kept = false;
    }
private function bring ( ) { foreach ( $ this -> _keptData as $ key => $ value ) { $ this -> $ key = $ value ; } // $ this -> _keyValue = $ this -> _keptData [ $ this -> _keyName ] ; // $ this -> _keptData = null ; $ this -> _kept = false ; }
to extruct data from keptdata array to become properties.

@return null
to extruct data from keptdata array to become properties .