MongoDB\Driver\WriteConcern::getW

(mongodb >=1.0.0)

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

说明

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

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

Example #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