(mongodb >=1.0.0)
MongoDB\Driver\WriteResult::getDeletedCount — 返回删除的文档数量
此函数没有参数。
返回删除的文档数量，如果写入未确认，则返回 null。
示例 #1 MongoDB\Driver\WriteResult::getDeletedCount() 示例
<?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->getDeletedCount());
?>上面的示例将输出
int(1)