Returns the number of documents upserted

# MongoDB\Driver\BulkWriteCommandResult::getUpsertedCount

(mongodb >=2.1.0)

MongoDB\Driver\BulkWriteCommandResult::getUpsertedCount — Returns the number of documents upserted

### 说明

final public function MongoDB\Driver\BulkWriteCommandResult::getUpsertedCount(): int

### 参数

此函数没有参数。

### 返回值

Returns the total number of documents upserted by all operations.

### 错误／异常

- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
- Throws MongoDB\Driver\Exception\LogicException if the write was not acknowledged.

### 示例

示例 #1 MongoDB\Driver\BulkWriteCommandResult::getUpsertedCount() example

    <?php

    $manager = new MongoDB\Driver\Manager;

    $bulk = new MongoDB\Driver\BulkWriteCommand;
    $bulk->insertOne('db.coll', ['x' => 1]);
    $bulk->updateOne('db.coll', ['x' => 1], ['$set' => ['y' => 3]]);
    $bulk->updateOne('db.coll', ['x' => 2], ['$set' => ['y' => 1]], ['upsert' => true]);
    $bulk->updateOne('db.coll', ['x' => 3], ['$set' => ['y' => 2]], ['upsert' => true]);
    $bulk->deleteMany('db.coll', []);

    $result = $manager->executeBulkWriteCommand($bulk);

    var_dump($result->getUpsertedCount());

    ?>

以上示例会输出：

    int(2)

### 参见

- MongoDB\Driver\BulkWriteCommandResult::getUpdateResults() - Returns verbose results for successful updates
- MongoDB\Driver\BulkWriteCommandResult::isAcknowledged() - Returns whether the write was acknowledged

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