Unserialize php in Javascript Nodejs

Unserialize php in Javascript Nodejs

Unserialize() is an opinionated function from PHP. The bad part is that beeing opinionated to PHP, when you need to go out from this environment, you can encounter some problems.

In the example below I used php-unserialize NPM Library.

import PhpUnserialize from 'php-unserialize';

const serialized = 'a:0:{}'
const jsObject = PhpUnserialize.unserialize(serialized);
console.log(jsObject) // {}

What happens if your serialized string contains special characters ?

Yeah, it fails!

In order to solve that we can use encoding NPM library.

import encoding from 'encoding';

export function convertToUtf8Win1252(str) {
  return encoding.convert(str, 'WINDOWS-1252').toString();

So mixing both functions:

export function unserializePhp(str) {
  return PhpUnserialize

How to handle array deserialization

Using php-unserialize library has some drawbacks


Note that array() will be converted to {} and not []. That can be discussed as array() in PHP has various significations. A choice had to be done, but it may change in the future (cf. next point).

A less obvious conversion is array(‘a’, ‘b’) which will be converted to {“0”: “a”, “1”: “b”}. Quite annoying, and it will be fixed if necessary (this means I won’t work on this issue unless you really need it, but I agree this is not normal behavior).

Having this context you cannot handle array functions, instead manipulate the objects:

const objectArray = {
  1: {foo: "bar1"},
  2: {foo: "bar2"},

Object.keys(objectArray).forEach((key) => {

// Output
// bar1
// bar2


Related Posts

How to launch a 6 figures startup with 0$ investment

Are you curious how to launch a startup in the fast and effective way? Here's not the answer, but you can understand how to achieve it

Resources to generate free legal pages for your website

Are you looking for resources to generate free legal pages for your website

Netopiajs library for nodejs

Unofficial library of Netopia to integrate with Nodejs

Where to find free assets and images list

Find a multitude of places with free assets and images for your project

Convert bson file to json with javascript

How to convert bson file to json with javascript with a simple script file

Managerflota idea validation

Managerflota idea validation thread. Manage the car hailing business in one web app.

Generate hexagons in JS based on center coordinates and radius

How to generate hexagons in javascript based on the center point coordinates and radius length

How to generate referral codes in javascript

How to generate referral codes in javascript very fast with less code

Loop over directories in bash and execute commands

How to loop over directories in bash and execute multiple commands

Get your Jenkins Passwords from secrets

How to get your Jenkins passwords from your secrets credentials. Follow this simple tutoriale and find your password or ssh private key.