Bootstrap\View\Helper\BootstrapNavbarHelper::link PHP Метод

    public function link($name, $url = '', array $options = [], array $linkOptions = [])
    {
        if ($this->_level == 0 && $this->autoButtonLink) {
            $options = $this->addClass($options, 'btn btn-default navbar-btn');
            return $this->Html->link($name, $url, $options);
        }
        if (Router::url() == Router::url($url) && $this->autoActiveLink) {
            $options = $this->addClass($options, 'active');
        }
        return $this->Html->tag('li', $this->Html->link($name, $url, $linkOptions), $options);
    }