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MongoDB\Driver\Server::getLatency

(mongodb >=1.0.0)

MongoDB\Driver\Server::getLatencyReturns the latency of this server in milliseconds

説明

final public MongoDB\Driver\Server::getLatency(): ?integer

Returns the latency of this server in milliseconds. This is the client's measured » round trip time of a hello command.

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 the latency of this server in milliseconds, or null if no latency has been measured (e.g. client is connected to a load balancer).

エラー / 例外

変更履歴

バージョン 説明
PECL mongodb 1.11.0 This method will return null if no latency has been measured. In earlier versions, an integer was always returned and an unset value might be reported as -1.

例1 MongoDB\Driver\Server::getLatency() example

<?php

$manager 
= new MongoDB\Driver\Manager("mongodb://localhost:27017/");

$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_PRIMARY);
$server $manager->selectServer($rp);

var_dump($server->getLatency());

?>

上の例の出力は、 たとえば以下のようになります。

int(592)

参考

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