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noahlvb/valueobject
===================

A php library to bootstrap the use of Domain Driven Design valueObjects

v1.0.2(4y ago)12.2k↓100%11MITPHPPHP ^7.1 || ^8.0

Since Mar 22Pushed 4y ago1 watchersCompare

[ Source](https://github.com/noahlvb/php-valueobject)[ Packagist](https://packagist.org/packages/noahlvb/valueobject)[ RSS](/packages/noahlvb-valueobject/feed)WikiDiscussions master Synced 1mo ago

READMEChangelog (3)Dependencies (3)Versions (4)Used By (1)

PHP Value Object
================

[](#php-value-object)

A library to bootstrap the use of Domain Driven Design valueObjects

[![CI](https://github.com/noahlvb/php-valueobject/workflows/CI/badge.svg?branch=master)](https://github.com/noahlvb/php-valueobject/workflows/CI/badge.svg?branch=master)[![Latest Stable Version](https://camo.githubusercontent.com/e277b5eb8418296652919ce1d1d5d0f5436e0fe5b9d965cfc23a2c1709111f95/68747470733a2f2f706f7365722e707567782e6f72672f6e6f61686c76622f76616c75656f626a6563742f762f737461626c65)](https://packagist.org/packages/noahlvb/valueobject)[![License](https://camo.githubusercontent.com/d4f883d4ecd8a3b613a4b8908ba00bd7e61e8fb688bc27f9288c9ee828e43346/68747470733a2f2f706f7365722e707567782e6f72672f6e6f61686c76622f76616c75656f626a6563742f6c6963656e7365)](https://packagist.org/packages/noahlvb/valueobject)

Installation
------------

[](#installation)

With [composer](http://packagist.org), add:

```
$ composer require noahlvb/valueobject
```

Or if your using Symfony: [valueobject-bundle](https://github.com/noahlvb/php-valueobject-bundle)

```
$ composer require noahlvb/valueobject-bundle
```

Run Tests
---------

[](#run-tests)

To make sure everything works you can run tests:

```
$ make test
```

How to use
----------

[](#how-to-use)

Currently there are two primitive types supported:

- String : ValueObjectString
- Integer : ValueObjectInteger

Creating a simple value object without checks.

```
class Name extends ValueObjectString
{
    protected function sanitize(string $value): string
    {
        return trim($value);
    }

    public function isValid(string $value): bool
    {
        return true;
    }
}
```

If you want to validate a value during construction of a value object, simply override the isValid method with your check:

```
class Name extends ValueObject
{
    protected function sanitize(string $value): string
    {
        return trim($value);
    }

    public function isValid(string $value): bool
    {
        return strlen($value) < 255;
    }
}
```

If you want a custom exception thrown during construction, override the getException method with your own exception:

```
class Name extends ValueObject
{
    protected function sanitize(string $value): string
    {
        return trim($value);
    }

    public function isValid(string $value): bool
    {
        return strlen($value) < 255;
    }

    protected function getException(): Exception
    {
        return new NameToLongException();
    }
}
```

Examples
--------

[](#examples)

Example implementations can be found at `tests/Unit/ValueObject`. These are the same value objects used for testing:

- [EmailAddress](tests/Unit/ValueObject/EmailAddress.php)
- [Capacity](tests/Unit/ValueObject/Capacity.php)

###  Health Score

31

—

LowBetter than 68% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity19

Limited adoption so far

Community10

Small or concentrated contributor base

Maturity63

Established project with proven stability

 Bus Factor1

Top contributor holds 90.9% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~385 days

Total

3

Last Release

1469d ago

PHP version history (3 changes)v1.0PHP ^7.1

1.0.1PHP &gt;=7.1

v1.0.2PHP ^7.1 || ^8.0

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/6873972?v=4)[Noah van Bochove](/maintainers/noahlvb)[@noahlvb](https://github.com/noahlvb)

---

Top Contributors

[![noahlvb](https://avatars.githubusercontent.com/u/6873972?v=4)](https://github.com/noahlvb "noahlvb (10 commits)")[![LauLaman](https://avatars.githubusercontent.com/u/8283992?v=4)](https://github.com/LauLaman "LauLaman (1 commits)")

---

Tags

dddvaluesOOPvalueobjectsscalar type

###  Code Quality

TestsPHPUnit

Code StylePHP CS Fixer

### Embed Badge

![Health badge](/badges/noahlvb-valueobject/health.svg)

```
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```

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