Cake\View\Helper\FormHelper::addContextProvider PHP Метод

    public function addContextProvider($type, callable $check)
    {
        foreach ($this->_contextProviders as $i => $provider) {
            if ($provider['type'] === $type) {
                unset($this->_contextProviders[$i]);
            }
        }
        array_unshift($this->_contextProviders, ['type' => $type, 'callable' => $check]);
    }