class cacheMemcache implements cacheInterface
{
    private $memcache;

    public function put($key, $value, $ttl = 0)
    {
        $this->_memcache->add($key, $value, MEMCACHE_COMPRESSED, $ttl);
    }

    public function get($key)
    {
        return $this->_memcache->get($key);
    }

    public function remove($key)
    {
        $this->_memcache->delete($key);
    }

    public function connect(array $opts)
    {
        $opts = array_merge(array('host'=>'localhost','port'=>11211), $opts);

        $this->_memcache = new Memcache;
        if (!$this->_memcache->connect($opts['host'], $opts['port']))
        {
            throw new Exception('Connection to memcache server failed');
        }
        $this->_memcache->setCompressThreshold(20000, 0.2);
    }

    public function disconnect()
    {
        $this->_memcache->close();
    }
}