public function setLabel($label)
    {
        if (!(is_scalar($label) || is_null($label))) {
            return false;
        }

        $this->label = $label;
    }
public function setLabel($label)
    {
        if (!(is_scalar($label) || is_null($label))) {
            return false;
        }

        $this->label = $label;
    }
public function setLabel ( $ label ) { if ( ! ( is_scalar ( $ label ) || is_null ( $ label ) ) ) { return false ; } $ this -> label = $ label ; }
Sets the node label

@access public
@param string $label the nodes label
Sets the node label