# The MongoDB\BSON\Int64 class

(mongodb >=1.5.0)

## Introduction

BSON type for a 64-bit integer. When decoding BSON to PHP data, this class is used when a 64-bit integer cannot be represented as a PHP integer on 32-bit platforms. These objects support overloaded arithmetic, bitwise, and comparison operators.

When working with raw BSON data through the MongoDB\BSON\Document, MongoDB\BSON\PackedArray, and MongoDB\BSON\Iterator classes, any 64-bit integer will be returned as an instance of this class, regardless of platform and whether the value can be represented as a PHP integer. This ensures that values can be roundtripped without changing the type.

During BSON encoding, objects of this class will convert back to a 64-bit integer type, even when the value would fit in a 32-bit integer. This allows explicitly storing values as 64-bit integers in BSON.

## Class synopsis

final class MongoDB\BSON\Int64 implements MongoDB\BSON\Type, JsonSerializable, Stringable {
/* Methods */
final public __construct(int|string `$value`)
final public jsonSerialize(): mixed
final public __toString(): string
}

## Changelog

Version | Description
--- | ---
PECL mongodb 2.0.0 | This class no longer implements the Serializable interface.
PECL mongodb 1.16.0 | The class can now be instantiated on all platforms. Added support for overloaded arithmetic, bitwise, and comparison operators.
PECL mongodb 1.12.0 | Implements Stringable for PHP 8.0+.

## Table of Contents

- MongoDB\BSON\Int64::__construct — Construct a new Int64
- MongoDB\BSON\Int64::jsonSerialize — Returns a representation that can be converted to JSON
- MongoDB\BSON\Int64::__toString — Returns the string representation of this Int64

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