MongoDB\Driver\WriteConcern::getJournal
(mongodb >=1.0.0)
MongoDB\Driver\WriteConcern::getJournal — Returns the WriteConcern's "journal" option
说明
final
public
MongoDB\Driver\WriteConcern::getJournal (
void ) :
boolean|null
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)
