Memcache example

'host' => '127.0.0.1',
            'port' => 11211,
            'extras' => array(
                'timeout' => 3600, // one hour                 'prefix' => 'simplepie_',
            ),
        );
        $this->options = SimplePie_Misc::array_merge_recursive($this->options, SimplePie_Cache::parse_URL($location));

        $this->name = $this->options['extras']['prefix'] . md5("$name:$type");

        $this->cache = new Memcache();
        $this->cache->addServer($this->options['host'], (int) $this->options['port']);
    }

    /** * Save data to the cache * * @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property * @return bool Successfulness */
    public function save($data)
    {
        

// attempt to get status of servers                 $stats = $this->memcached->getStats();

                // $stats should be an associate array with a key in the format of host:port.                 // If it doesn't have the key, we know the server is not working as expected.                 if (! isset($stats[$this->config['host'] . ':' . $this->config['port']])) {
                    throw new CriticalError('Cache: Memcached connection failed.');
                }
            } elseif (class_exists(Memcache::class)) {
                // Create new instance of Memcache                 $this->memcached = new Memcache();

                // Check if we can connect to the server                 $canConnect = $this->memcached->connect(
                    $this->config['host'],
                    $this->config['port']
                );

                // If we can't connect, throw a CriticalError exception                 if ($canConnect === false) {
                    throw new CriticalError('Cache: Memcache connection failed.');
                }