(mongodb >=1.0.0)
MongoDB\Driver\WriteResult::getDeletedCount — Returns the number of documents deleted
此函数没有参数。
Returns the number of documents deleted, or NULL if the write was not
acknowledged.
Example #1 MongoDB\Driver\WriteResult::getDeletedCount() 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->getDeletedCount());
?>
以上例程会输出：
int(1)