In case you are trying to add an index to a collection, and the index is already there, the value of getInsertedCount() depends on the MongoDB server version.
For example, MongoDB version 2.4 consider the index as inserted, but version 3.6 does not.
MongoDB\Driver\WriteResult::getInsertedCount
(mongodb >=1.0.0)
MongoDB\Driver\WriteResult::getInsertedCount — Returns the number of documents inserted (excluding upserts)
说明
final public MongoDB\Driver\WriteResult::getInsertedCount(): int|null
参数
此函数没有参数。
返回值
Returns the number of documents inserted (excluding upserts), or null if
the write was not acknowledged.
错误／异常
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
范例
示例 #1 MongoDB\Driver\WriteResult::getInsertedCount() example
<?php
$manager = new MongoDB\Driver\Manager;
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$bulk->update(['x' => 1], ['$set' => ['y' => 3]]);
$bulk->update(['x' => 2], ['$set' => ['y' => 1]], ['upsert' => true]);
$bulk->update(['x' => 3], ['$set' => ['y' => 2]], ['upsert' => true]);
$bulk->delete(['x' => 1]);
$result = $manager->executeBulkWrite('db.collection', $bulk);
var_dump($result->getInsertedCount());
?>
以上例程会输出：
int(1)
参见
- MongoDB\Driver\WriteResult::isAcknowledged() - Returns whether the write was acknowledged
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