MatthiasMullie\Scrapbook\Adapters\Memcached::touch PHP Метод

    public function touch($key, $expire)
    {
        /*
         * Since \Memcached has no reliable touch(), we might as well take an
         * easy approach where we can. If TTL is expired already, just delete
         * the key - this only needs 1 request.
         */
        if ($expire < 0 || $expire > 2592000 && $expire < time()) {
            return $this->delete($key);
        }
        /*
         * HHVM doesn't support touch.
         * @see http://docs.hhvm.com/manual/en/memcached.touch.php
         *
         * PHP does, but only with \Memcached::OPT_BINARY_PROTOCOL == true,
         * and even then, it appears to be buggy on particular versions of
         * Memcached.
         *
         * I'll just work around it!
         */
        $value = $this->get($key, $token);
        return $this->cas($token, $key, $value, $expire);
    }