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.
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