Data transformer

The modern PHP library for converting arrays into objects and vice-versa.

Installation

composer require blacktrs/data-transformer

Summary

By default, the library will try to resolve public properties and match the with array fields. The transformer is trying to find an object property with equal name as array field. In case, if object missing such fields, the transformer converts array keys into camel case. However, it is possible to configure needed properties with attributes.

Features

• Seamless converting of objects into arrays and vice-versa
• Auto conversion of nested properties with class type-hint into array and vice-versa
• The library respects the declared property type
• The library will respect private properties unless they will be declared explicitly as writable by the attribute
• The library takes into account getters or methods with the same name as a property
• Enum conversion
• Stringable objects conversion
• Configurable custom property value resolvers
• Configurable custom object transformers

Configuration

Default transformer implementation \Blacktrs\DataTransformer\Transformer\Transformer allows to force private properties write by using method setIncludePrivateProperties or constructor parameter $includePrivateProperties

Attribute DataField

This attribute is applicable to properties. By this attribute you can configure the behavior for each property you need

The following parameters can be specified:

• string|null $nameIn Field name in an input array to map with the property
• string|null $nameOut Field name in an output array to fill with the property data
• ValueResolverInterface|class-string<ValueResolverInterface>|null $valueResolver Custom value resolver to convert property data in a needed way
• array<key,value> $valueResolverArguments Additional arguments passed into value resolver
• TransformerInterface|class-string<TransformerInterface>|null $objectTransformer Custom property transformer to achieve more control in case if object passed
• bool $ignoreTransform Skip property while transforming an array into the object
• bool $ignoreSerialize Skip property while serializing an object into array

Attribute DataObject

This attribute is applicable to classes and allows to use custom object serializer while converting object into other form

The following parameters can be specified:

• ObjectSerializerInterface|class-string<ObjectSerializerInterface>|null $objectTransformer Custom object serializer

Examples

Convert the array into the object

use Blacktrs\DataTransformer\Attribute\DataField;
use Blacktrs\DataTransformer\Value\DateTimeValueResolver;
use Blacktrs\DataTransformer\Transformer\Transformer;

class RequestObject
{
    public readonly int $id;
    public readonly string $email;
    public readonly string $name;
    #[DataField(valueResolver: DateTimeValueResolver::class)]
    public readonly \DateTime $date;
}

$requestPayload = ['id' => 1, 'email' => '[email protected]', 'name' => 'John Doe', 'date' => '2023-06-01 10:10:10'];

$transformer = new Transformer();
$requestObject = $transformer->transform(RequestObject::class, $requestPayload);

echo $requestObject->id; // 1
echo $requestObject->email; // [email protected]
echo $requestObject->name; // John Doe
echo $requestObject->date->format('Y-m-d'); // 2023-06-01

Convert the object into the array

use Blacktrs\DataTransformer\Serializer\ObjectSerializer;

class ResponseObject
{
    public function __construct(
        public readonly int $id,
        public readonly string $email,
        public readonly string $name
    ) {
    }
}

$responseObject = new ResponseObject(
    id: 1, 
    email: '[email protected]', 
    name: 'John Doe'
);

$serializer = new ObjectSerializer();
$responseArray = $serializer->serialize($responseObject);

echo $responseArray['id']; // 1

More examples

More examples could be found in tests