DataMapper

A lightweight PHP 8.1+ utility for mapping associative arrays to plain PHP objects (POPOs) and vice versa, using reflection and PHP attributes.

Features

• ⚙️ Supports native PHP 8.1+ typed properties
• 📌 Declarative mapping via custom attributes
• 📅 Handles date and datetime format conversions
• 🗂️ Supports arrays of objects via #[ArrayType]
• 🗺️ Supports associative maps via #[MapType]
• 📁 Supports file mapping via SplFileObject and UploadedFileInterface
• 🧩 Enum handling with tryFrom
• 🔍 Optional strict validation for required properties
• ✅ Converts object back to associative array (toArray)

Installation

composer require futuretek/data-mapper

Usage

Define DTO with Attributes

use futuretek\datamapper\attributes\ArrayType;
use futuretek\datamapper\attributes\MapType;
use futuretek\datamapper\attributes\Format;

class BlogPost
{
    public string $title;

    #[Format('date-time')]
    public \DateTimeImmutable $publishedAt;

    #[ArrayType(Comment::class)]
    public array $comments;

    #[MapType(valueType: Tag::class)]
    public array $tags;
}

Map From Array

use futuretek\datamapper\DataMapper;

$dto = DataMapper::toObject($dataArray, BlogPost::class);

Convert Back To Array

$array = DataMapper::toArray($dto);

Configuration

DataMapper::$validateRequiredProperties = true;
DataMapper::$fileFactory = new MyFileFactory(); // for handling UploadedFileInterface

Custom Attributes

• #[Format('date')] or #[Format('date-time')] – Parses strings into DateTimeImmutable
• #[ArrayType(Foo::class)] – Declares array of objects
• #[MapType(valueType: Foo::class)] – Declares map of string keys to objects

File Handling

Supports any type of file types. Also supports custom file factory for converting file types to PSR-7 UploadedFileInterface.

License

Apache License 2.0