QRCode.class.php
public function geo($sLat, $sLon, $iHeight)
    {
        $this->sData .= 'GEO:' . $sLat . ',' . $sLon . ',' . $iHeight . "\n";
        return $this;
    }
public function geo($sLat, $sLon, $iHeight)
    {
        $this->sData .= 'GEO:' . $sLat . ',' . $sLon . ',' . $iHeight . "\n";
        return $this;
    }
Geo location.

@param string $sLat Latitude
@param string $sLon Longitude
@param integer $iHeight Height

@return self