MongoDB\Driver\TopologyDescription::hasReadableServer

(mongodb >=1.13.0)

MongoDB\Driver\TopologyDescription::hasReadableServer — Returns whether the topology has a readable server

Description

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

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

Liste de paramètres

Cette fonction ne contient aucun paramètre.

Valeurs de retour

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

Erreurs / Exceptions

  • Lance une exception MongoDB\Driver\InvalidArgumentException lors d'une erreur survenue pendant l'analyse d'un argument.