PhpOffice\PhpPresentation\Shape\Chart\Type\AbstractTypeBar::getHashCode PHP Метод

    public function getHashCode()
    {
        $hash = '';
        foreach ($this->getSeries() as $series) {
            $hash .= $series->getHashCode();
        }
        return $hash;
    }

 /**
  * Get hash code
  *
  * @return string Hash code
  */
 public function getHashCode()
 {
     return md5(parent::getHashCode() . __CLASS__);
 }