MongoDB\Driver\ReadPreference::getMaxStalenessSeconds
(mongodb >=1.2.0)
MongoDB\Driver\ReadPreference::getMaxStalenessSeconds — Returns the ReadPreference's "maxStalenessSeconds" option
说明
参数
此函数没有参数。
返回值
Returns the ReadPreference's "maxStalenessSeconds" option. If no max
staleness has been specified,
MongoDB\Driver\ReadPreference::NO_MAX_STALENESS
will be
returned.
错误/异常
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
示例
示例 #1 MongoDB\Driver\ReadPreference::getMaxStalenessSeconds() example
<?php
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::SECONDARY);
var_dump($rp->getMaxStalenessSeconds());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::SECONDARY, null, [
'maxStalenessSeconds' => MongoDB\Driver\ReadPreference::NO_MAX_STALENESS,
]);
var_dump($rp->getMaxStalenessSeconds());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::SECONDARY, null, [
'maxStalenessSeconds' => MongoDB\Driver\ReadPreference::SMALLEST_MAX_STALENESS_SECONDS,
]);
var_dump($rp->getMaxStalenessSeconds());
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::SECONDARY, null, [
'maxStalenessSeconds' => 1000,
]);
var_dump($rp->getMaxStalenessSeconds());
?>
以上示例会输出:
int(-1) int(-1) int(90) int(1000)
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备份地址:http://www.lvesu.com/blog/php/mongodb-driver-readpreference.getmaxstalenessseconds.php