private function notify($line)
    {
        $observers = $this->observers;

        foreach ($observers as $observer) {
            $this->delegate($observer, $line);
        }
    }
private function notify($line)
    {
        $observers = $this->observers;

        foreach ($observers as $observer) {
            $this->delegate($observer, $line);
        }
    }
private function notify ( $ line ) { $ observers = $ this -> observers ; foreach ( $ observers as $ observer ) { $ this -> delegate ( $ observer , $ line ) ; } }
notify to observers

@param $line
notify to observers