function setZoom($scale = 100)
    {
        // Confine the scale to Excel's range
        if ($scale < 10 || $scale > 400) {
            $this->raiseError("Zoom factor $scale outside range: 10 <= zoom <= 400");
            $scale = 100;
        }

        $this->_zoom = floor($scale);
    }
function setZoom($scale = 100)
    {
        // Confine the scale to Excel's range
        if ($scale < 10 || $scale > 400) {
            $this->raiseError("Zoom factor $scale outside range: 10 <= zoom <= 400");
            $scale = 100;
        }

        $this->_zoom = floor($scale);
    }
function setZoom ( $ scale = 100 ) { // Confine the scale to Excel's range
 if ( $ scale < 10 || $ scale > 400 ) { $ this -> raiseError ( "Zoom factor $scale outside range: 10 <= zoom <= 400" ) ; $ scale = 100 ; } $ this -> _zoom = floor ( $ scale ) ; }
Set the worksheet zoom factor.

@access public
@param integer $scale The zoom factor
Set the worksheet zoom factor .