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    The MongoDB\BSON\Undefined class (deprecated)

    (mongodb >=1.4.0)

    はじめに

    BSON type for the "Undefined" type. This BSON type is deprecated, and this class can not be instantiated. It will be created from a BSON undefined type while converting BSON to PHP, and can also be converted back into BSON while storing documents in the database.

    クラス概要

    final MongoDB\BSON\Undefined implements MongoDB\BSON\Type , Serializable , JsonSerializable {
    /* メソッド */
    final private __construct()
    final public jsonSerialize(): mixed
    final public serialize(): string
    final public __toString(): string
    final public unserialize(string $serialized): void
    }

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