public static function clearGroup($group, $config = 'default') {
		if (!self::isInitialized($config)) {
			return false;
		}
		$start = microtime(true);
		$success = self::$_engines[$config]->clearGroup($group);
		self::__logActivity($config, 'clearGroup', '', $success, $start);
		self::set(null, $config);

		self::$_queriesCount['total']++;

		return $success;
	}
public static function clearGroup($group, $config = 'default') {
		if (!self::isInitialized($config)) {
			return false;
		}
		$start = microtime(true);
		$success = self::$_engines[$config]->clearGroup($group);
		self::__logActivity($config, 'clearGroup', '', $success, $start);
		self::set(null, $config);

		self::$_queriesCount['total']++;

		return $success;
	}
public static function clearGroup ( $ group , $ config = 'default' ) { if ( ! self :: isInitialized ( $ config ) ) { return false ; } $ start = microtime ( true ) ; $ success = self :: $ _engines [ $ config ] -> clearGroup ( $ group ) ; self :: __logActivity ( $ config , 'clearGroup' , '' , $ success , $ start ) ; self :: set ( null , $ config ) ; self :: $ _queriesCount [ 'total' ] ++ ; return $ success ; }
Delete all keys from the cache belonging to the same group.

@param string $group name of the group to be cleared
@param string $config name of the configuration to use. Defaults to 'default'
@return boolean True if the cache group was successfully cleared, false otherwise
Delete all keys from the cache belonging to the same group .