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MongoDB\BSON\ObjectId::getTimestamp	MongoDB\BSON\ObjectId::__toString

MongoDB\BSON\ObjectId	Last updated: Mon, 26 Oct 2026

MongoDB\BSON\ObjectId::jsonSerialize

(mongodb >=1.2.0)

MongoDB\BSON\ObjectId::jsonSerialize — Returns a representation that can be converted to JSON

Description

final public function MongoDB\BSON\ObjectId::jsonSerialize(): mixed

Parameters

This function has no parameters.

Return Values

Returns data which can be serialized by json_encode() to produce an extended JSON representation of the MongoDB\BSON\ObjectId.

Note:
The output is consistent with the MongoDB\BSON\toJSON() function, which uses the driver-specific legacy extended JSON format. This does not necessarily match the » relaxed or » canonical extended JSON representations used by MongoDB\BSON\toRelaxedExtendedJSON() and MongoDB\BSON\toCanonicalExtendedJSON(), respectively.

Errors/Exceptions

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

See Also

JsonSerializable::jsonSerialize() - Specify data which should be serialized to JSON
json_encode() - Returns the JSON representation of a value
MongoDB\BSON\toCanonicalExtendedJSON() - Returns the Canonical Extended JSON representation of a BSON value
MongoDB\BSON\toRelaxedExtendedJSON() - Returns the Relaxed Extended JSON representation of a BSON value
» MongoDB Extended JSON

MongoDB\BSON\ObjectId::getTimestamp	MongoDB\BSON\ObjectId::__toString

MongoDB\BSON\ObjectId	Last updated: Mon, 26 Oct 2026