MongoDB\Driver\WriteConcern::getJournal

(mongodb >=1.0.0)

MongoDB\Driver\WriteConcern::getJournal — Returns the WriteConcern's "journal" option

说明

final public boolean|null MongoDB\Driver\WriteConcern::getJournal ( void )

参数

此函数没有参数。

返回值

Returns the WriteConcern's "journal" option.

错误／异常

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

范例

Example #1 MongoDB\Driver\WriteConcern::getJournal() example


<?php

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

$wc = new MongoDB\Driver\WriteConcern(1, 0, true);
var_dump($wc->getJournal());

$wc = new MongoDB\Driver\WriteConcern(1, 0, false);
var_dump($wc->getJournal());

?>

以上例程会输出：

NULL
bool(true)
bool(false)

参见

» Write Concern reference