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ActiveLibrary[Validation & Sanitization](/categories/validation)

davajlama/schemator
===================

Schemator is lightweight library for data validation, sanitization and API documentation generation.

14.2k↓70.8%[2 issues](https://github.com/davajlama/Schemator/issues)PHP

Since Feb 22Pushed 2w ago1 watchersCompare

[ Source](https://github.com/davajlama/Schemator)[ Packagist](https://packagist.org/packages/davajlama/schemator)[ RSS](/packages/davajlama-schemator/feed)WikiDiscussions master Synced yesterday

READMEChangelogDependenciesVersions (6)Used By (0)

Schemator
=========

[](#schemator)

Schemator is lightweight library for data validation, sanitization and API documentation generation.

- Data validation
- Data sanitization
- JSON Schema builder
- OpenApi builder
- Swagger builder

Data validation
---------------

[](#data-validation)

Define schema:

```
$schema = new Schema();
$schema->prop('firstname')->string()->minLength(1)->maxLength(100)->required();
$schema->prop('surname')->string()->minLength(1)->maxLength(100)->required();
$schema->prop('sex')->enum(['MALE', 'FEMALE'])->required();

// OR

#[RequiredAll]
class Author
{
    public function __construct(
        #[RangeLength(1, 100)] public string $firstname,
        #[RangeLength(1, 100)] public string $surname,
        #[Enum(['MALE', 'FEMALE'])] public string $sex,
    ) {
    }
}
```

Data validation:

```
$payload = [
    'firstname' => 'Dave',
    'surname' => 'Lister',
    'sex' => 'MALE',
];

try {
    (new ArrayValidator())->validate($schema, $payload);
    // OR
    (new ArrayValidator())->validate((new SchemaBuilder())->build(Author::class), $payload);
} catch (ValidationFailedException $e) {
    var_dump(MessageFormatter::toFlatten($e->getErrors()));
}
```

Conditional validation:

```
$payload = [
    'firstname' => 'Dave',
    'surname' => 'Lister',
];

$conditions = new ArraySchemaConditions();
$conditions->props('firstname', 'surname')->filledAllOrNone();

try {
    $conditions->validate($payload);
} catch (ValidationFailedException $e) {
    var_dump(MessageFormatter::toFlatten($e->getErrors()));
}
```

Data sanitization
-----------------

[](#data-sanitization)

```
$payload = [
    'firstname' => '  Dave  ',
    'surname' => 'Lister ',
];

$sanitizer = new ArrayDataSanitizer();
$sanitizer->props('firstname', 'surname')->trim();
$sanitizer->props('sex')->defaultIfNotExists('MALE');

$sanitizedPayload = $sanitizer->sanitize($payload);
```

JSON Schema builder
-------------------

[](#json-schema-builder)

```
$builder = new JsonSchemaBuilder();
$builder->buildToJson($schema); // return JSON Schema specification
```

OpenApi builder
---------------

[](#openapi-builder)

```
$api = new Api();
$api->info()->title('Example documentation');
$api->info()->description((string) file_get_contents(__DIR__ . '/description.md'));
$api->info()->version('1.0.0');

Partition::apply($api, Partition::create(static function (Api $api): void {
    $ep = $api->get('/book-store/manage/attribute/list');
    $ep->tags('BookStore', 'BookStore - Manage');
    $ep->headerParam('x-api-key', true)->description('User api key');
    $ep->queryParam('limit');
    $ep->queryParam('offset');
    $ep->jsonResponse200Ok(Attributes::class);
    $ep->jsonResponse401AuthorizationRequired(Problem::class);
    $ep->response500InternalServerError();
}));

$builder = new OpenApiBuilder(new JsonSchemaBuilder());
$generator->build($api); // return OpenApi specification
```

Swagger builder
---------------

[](#swagger-builder)

```
$swagger = new SwaggerBuilder();
echo $swagger->build($api, 'Bookstore API'); // return HTML Swagger documentation
```

[![Bookstore API documentation](./Demo/resources/ExampleDocumentation.png)](./Demo/resources/ExampleDocumentation.png)

###  Health Score

27

—

LowBetter than 47% of packages

Maintenance43

Moderate activity, may be stable

Popularity23

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity29

Early-stage or recently created project

 Bus Factor1

Top contributor holds 100% 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.

### Community

Maintainers

![](https://www.gravatar.com/avatar/58a72d18c9248d7c7f76f1798798ffe376fa8863b8726d6418e70c5c9f412cde?d=identicon)[davajlama](/maintainers/davajlama)

---

Top Contributors

[![davajlama](https://avatars.githubusercontent.com/u/14033398?v=4)](https://github.com/davajlama "davajlama (28 commits)")

### Embed Badge

![Health badge](/badges/davajlama-schemator/health.svg)

```
[![Health](https://phpackages.com/badges/davajlama-schemator/health.svg)](https://phpackages.com/packages/davajlama-schemator)
```

###  Alternatives

[marcosh/php-validation-dsl

A DSL for validating data in a functional fashion

483.9k](/packages/marcosh-php-validation-dsl)

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