MongoDB\BSON\Undefined::serialize
(mongodb >=1.4.0)
MongoDB\BSON\Undefined::serialize — Serialize a Undefined
说明
final public MongoDB\BSON\Undefined::serialize(): string
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() - 产生一个可存储的值的表示
- Serializing Objects
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备份地址：http://www.lvesu.com/blog/php/mongodb-bson-undefined.serialize.php