使用PHP在MongoDB中进行Update，UpdateOne

Question

我正在尝试使用PHP在Mongo DB上使用ID更新内容。通过Update，UpdateMany，BulkWrite，我尝试更新内容，但仍然遇到问题。

批量写入错误：

Fatal error: Uncaught MongoDB\Driver\Exception\InvalidArgumentException: Cannot do an empty bulk write in C:\xampp\htdocs\phpmongodb\update1.php:32 Stack trace: #0 C:\xampp\htdocs\phpmongodb\update1.php(32): MongoDB\Driver\Manager->executeBulkWrite('hospitaldb.doct...', Object(MongoDB\Driver\BulkWrite)) #1 {main} thrown in C:\xampp\htdocs\phpmongodb\update1.php on line 32

更新错误：

Fatal error: Uncaught Error: Call to undefined method MongoDB\Collection::update() in C:\xampp\htdocs\phpmongodb\update1.php:30 Stack trace: #0 {main} thrown in C:\xampp\htdocs\phpmongodb\update1.php on line 30

我分别执行了这两个命令。

$manager = new MongoDB\Driver\Manager('mongodb://localhost:27017');
$bulk = new MongoDB\Driver\BulkWrite;

$mycollection->executeBulkWrite(['_id' => new \MongoDB\BSON\ObjectID($_SESSION['$id'])], ['$set' => ['$password' => $newpass]]);

$manager->executeBulkWrite($mycollection, $bulk);