public function getModuleSize()
    {
        if ( is_null($this->moduleSize) )
        {
            $this->moduleSize = $this->getImageFormat() == "jpeg" ? 8 : 4;
        }

        return $this->moduleSize;
    }
public function getModuleSize()
    {
        if ( is_null($this->moduleSize) )
        {
            $this->moduleSize = $this->getImageFormat() == "jpeg" ? 8 : 4;
        }

        return $this->moduleSize;
    }
public function getModuleSize ( ) { if ( is_null ( $ this -> moduleSize ) ) { $ this -> moduleSize = $ this -> getImageFormat ( ) == "jpeg" ? 8 : 4 ; } return $ this -> moduleSize ; }
Return QR Code module size

@return int
Return QR Code module size