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MongoDB\Driver\TopologyDescription::hasReadableServerReturns whether the topology has a readable server Description
final public bool MongoDB\Driver\TopologyDescription::hasReadableServer(MongoDB\Driver\ReadPreferencenull
$readPreference = null)
Returns whether the topology has a readable server or, if
ParametersThis function has no parameters. Return Values
Returns whether the topology has a readable server or, if
Errors/Exceptions
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