Php/docs/mongodb-driver-writeconcern.getw

• PHP Manual
• MongoDB\Driver\WriteConcern
• Returns the WriteConcern's "w" option

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

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