/** * Internal method to check if the given cache supports tags * * @param Zend_Cache $cache */ protected static function _getTagSupportForCache() { $backend = self::$_cache->getBackend(); if ($backend instanceof Zend_Cache_Backend_ExtendedInterface) { $cacheOptions = $backend->getCapabilities(); self::$_cacheTags = $cacheOptions['tags']; } else { self::$_cacheTags = false; } return self::$_cacheTags; }