Php/docs/mongodb-driver-server.getlatency

• PHP Manual
• MongoDB\Driver\Server
• Returns the latency of this server

MongoDB\Driver\Server::getLatency

(mongodb >=1.0.0)

MongoDB\Driver\Server::getLatency — Returns the latency of this server

说明

final public MongoDB\Driver\Server::getLatency ( ) : string

Returns the latency of this server (i.e. the client's measured » round trip time of an ismaster command).

参数

此函数没有参数。

返回值

Returns the latency of this server.

错误／异常

• Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

范例

Example #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());?>

以上例程的输出类似于：

int(592)

参见

• MongoDB\Driver\Server::getInfo() - Returns an array of information about this server
• » Server Discovery and Monitoring Specification