MongoDB\Driver\WriteConcern::getW

(mongodb >=1.0.0)

MongoDB\Driver\WriteConcern::getW — Returns the WriteConcern's "w" option

说明

final public MongoDB\Driver\WriteConcern::getW(): string|int|null

参数

此函数没有参数。

返回值

Returns the WriteConcern's "w" option.

错误／异常

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

范例

示例 #1 MongoDB\Driver\WriteConcern::getW() example


<?php

$wc = new MongoDB\Driver\WriteConcern(1);
var_dump($wc->getW());

$wc = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY);
var_dump($wc->getW());

?>

以上例程会输出：

int(1)
string(8) "majority"

参见

» Write Concern reference

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