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<MongoDB\BSON\Serializable::bsonSerializeMongoDB\BSON\Unserializable::bsonUnserialize>
^MongoDB\BSONLast updated: Mon, 26 Oct 2026

The MongoDB\BSON\Unserializable interface

(mongodb >=1.0.0)

Introduction

Classes that implement this interface may be specified in a type map for unserializing BSON arrays and documents (both root and embedded).

Interface synopsis

class MongoDB\BSON\Unserializable {
/* Methods */
abstract public function bsonUnserialize(array $data): void
}

Changelog

Version Description
PECL mongodb 2.0.0 Return types previously declared as tentative are now enforced.
PECL mongodb 1.15.0 Return types for methods are declared as tentative on PHP 8.0 and newer, triggering deprecation notices in code that implements this interface without declaring the appropriate return types. The #[ReturnTypeWillChange] attribute can be added to silence the deprecation notice.

Table of Contents


<MongoDB\BSON\Serializable::bsonSerializeMongoDB\BSON\Unserializable::bsonUnserialize>
^MongoDB\BSONLast updated: Mon, 26 Oct 2026