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MongoDB\UpdateResult::getUpsertedCount()

MongoDB\UpdateResult::getUpsertedCount()

Return the number of documents that were upserted.

function getUpsertedCount(): integer

This method should only be called if the write was acknowledged.

The total number of documents that were upserted. This should be either 0 or 1 for an acknowledged update or replace operation, depending on whether an upsert occurred.

MongoDB\Exception\BadMethodCallException if this method is called and the write operation used an unacknowledged write concern.