(mongodb >=1.0.0)
Classes that implement this interface may return data to be serialized as a BSON array or document in lieu of the object's public properties.
| バージョン | 説明 | 
|---|---|
| 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. | 
