Description

RemiLelaidier

opened on Apr 14, 2023

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Hi,

I am currently working on a project where I serialize JSON objects using the php library msgpack-php, but when I try to deserialize these objects using the javascript library msgpack-javascript, my integers are truncated.

PHP :

$data = [
    '7355750935770677725' => "test",
];

$msg = msgpack_pack($data);

...

JS :

import { decode } from '@msgpack/msgpack';

const decoded = decode(entry);

console.log(decoded)

Result :

{  '7355750935770677000': 'test'  }

As you can see the last three digits of my integer are set to 0.

This seems to be an interoperability problem between the php library and Node.js

Activity

1. BerndAmend commented on Jun 1, 2023

   

   BerndAmend

   on Jun 1, 2023

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   Your number is bigger than Number.MAX_SAFE_INTEGER and can therefore not be processed as a JavaScript number.
   You may need to have a look at the JavaScripts BigInt type and the DecoderOption useBigInt64.
2. WebReflection commented on Feb 21, 2025

   

   WebReflection

   on Feb 21, 2025

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   curious to know, as PHP has both associative arrays and regular arrays or stdClass, how MessagePack addresses those ... clearly in here if MessagePack JS creates an array with such length some concern might rightly so raise?

   Reacted by Rémi Lelaidier - RLFly.fr

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