The MongoDB\BSON\Undefined class
(mongodb >=1.4.0)
简介
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.
类摘要
final
class MongoDB\BSON\Undefined
implements
MongoDB\BSON\Type, Serializable, JsonSerializable, Stringable {
/* 方法 */
}目录
- MongoDB\BSON\Undefined::__construct — Construct a new Undefined (unused)
- MongoDB\BSON\Undefined::jsonSerialize — Returns a representation that can be converted to JSON
- MongoDB\BSON\Undefined::serialize — Serialize a Undefined
- MongoDB\BSON\Undefined::__toString — Returns an empty string
- MongoDB\BSON\Undefined::unserialize — Unserialize a Undefined
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备份地址：http://www.lvesu.com/blog/php/class.mongodb-bson-undefined.php