yii\caching\ChainedDependency::isChanged PHP Метод

    public function isChanged($cache)
    {
        foreach ($this->dependencies as $dependency) {
            if ($this->dependOnAll && $dependency->isChanged($cache)) {
                return true;
            } elseif (!$this->dependOnAll && !$dependency->isChanged($cache)) {
                return false;
            }
        }
        return !$this->dependOnAll;
    }