public static function getConnection($db)
{
if (!isset(self::$instances[$db])) {
$config = Config::loadConfig('database')[$db];
$uri = $config['server'] ? 'mongodb://' . $config['server'] : '';
$options = $config['options'] ?: [];
$client = new \MongoDB\Client($uri, $options);
self::$instances[$db] = $client->selectDatabase($config['database']);
}
return self::$instances[$db];
}
private static function getInstance()
{
if (!empty(self::$instance)) {
return self::$instance;
}
$config = Config::loadConfig('cache');
$driver = $config['driver'];
if (!extension_loaded($driver)) {
throw new Exception("error driver [{$driver}]");
}
$servers = $config['servers'] ?: [];
$options = $config['options'] ?: [];
$mc = new Memcached();
$mc->setOptions($options);
$mc->addServers($servers);
return self::$instance = $mc;
}
