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.
Parameters
This function has no parameters.
Return Values
Returns whether the topology has a readable server or, if
readPreference is specified, a server matching the
specified read preference.
Errors/Exceptions
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
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