public function flush()
    {
        if (!($this->cache instanceof FlushableInterface)) {
            return false;
        }

        try {
            return $this->cache->flush();
        } catch (ZendException\ExceptionInterface $ex) {
            return false;
        }
    }
public function flush()
    {
        if (!($this->cache instanceof FlushableInterface)) {
            return false;
        }

        try {
            return $this->cache->flush();
        } catch (ZendException\ExceptionInterface $ex) {
            return false;
        }
    }
public function flush ( ) { if ( ! ( $ this -> cache instanceof FlushableInterface ) ) { return false ; } try { return $ this -> cache -> flush ( ) ; } catch ( ZendException \ ExceptionInterface $ ex ) { return false ; } }
Flush the whole storage

@return bool
Flush the whole storage