/** * Retrieves a value from cache with a specified key. * This is the implementation of the method declared in the parent class. * @param string $key A unique key identifying the cached value * @return string The value stored in cache, false if the value is not in the cache or expired. */ protected function getValue($key) { $cacheItem = $this->_yiiron->cacheGetItem($this->yiironCacheName, $key); if ($cacheItem != null && $cacheItem->value != null) { return $cacheItem->value; } else { return false; } }