MongoDB\Driver\TopologyDescription
PHP マニュアル

MongoDB\Driver\TopologyDescription::hasReadableServer

Returns whether the topology has a readable server

説明

final public bool MongoDB\Driver\TopologyDescription::hasReadableServer(MongoDB\Driver\ReadPreferencenull $readPreference = null)

Returns whether the topology has a readable server or, if readPreference is specified, a server matching the specified read preference.

パラメータ

この関数にはパラメータはありません。

戻り値

Returns whether the topology has a readable server or, if readPreference is specified, a server matching the specified read preference.

エラー / 例外

  • Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.