MongoDB\BSON\Undefined::serialize
(mongodb >=1.4.0)
MongoDB\BSON\Undefined::serialize — Serialize a Undefined
说明
参数
此函数没有参数。
返回值
Returns the serialized representation of the MongoDB\BSON\Undefined.
错误／异常
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
参见
- MongoDB\BSON\Undefined::unserialize() - Unserialize a Undefined
- serialize() - 生成值的可存储表示
- Serializing Objects
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