MongoDB\Driver\WriteResult::isAcknowledged
(mongodb >=1.0.0)
MongoDB\Driver\WriteResult::isAcknowledged — Returns whether the write was acknowledged
说明
final
public
MongoDB\Driver\WriteResult::isAcknowledged (
void ) :
bool
If the write is acknowledged, other count fields will be available on the MongoDB\Driver\WriteResult object.
参数
此函数没有参数。
返回值
Returns TRUE if the write was acknowledged, and FALSE otherwise.
错误／异常
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
范例
Example #1 MongoDB\Driver\WriteResult::isAcknowledged() with acknowledged write concern
<?php
$manager = new MongoDB\Driver\Manager;
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$result = $manager->executeBulkWrite('db.collection', $bulk);
var_dump($result->isAcknowledged());
?>
以上例程会输出：
bool(true)
Example #2 MongoDB\Driver\WriteResult::isAcknowledged() with unacknowledged write concern
<?php
$manager = new MongoDB\Driver\Manager;
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$result = $manager->executeBulkWrite('db.collection', $bulk, new MongoDB\Driver\WriteConcern(0));
var_dump($result->isAcknowledged());
?>
以上例程会输出：
bool(false)
