MongoDB\BSON\Undefined::__construct

    (mongodb >=1.4.0)

    MongoDB\BSON\Undefined::__construct — Construct a new Undefined (unused)

    说明

    finalprivateMongoDB\BSON\Undefined::__construct()

    MongoDB\BSON\Undefined objects are created through conversion from a deprecated BSON type and cannot be constructed directly.

    参数

    此函数没有参数。

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