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YAML to PHP Converter

Working with YAML data and need PHP models fast? YAML supports anchors (&) and aliases (*) for reusable values — this converter resolves them before generating types. This free, browser-based converter parses your YAML and generates clean, production-ready PHP code — no account required.

Generate PHP classes with typed properties and constructor promotion for modern PHP 8.x codebases.

How to use this converter

  1. Paste your YAML into the left editor panel
  2. Click Generate
  3. Copy the generated PHP code from the right panel

No account. No upload. No tracking. Runs entirely in your browser.

Example PHP output

<?php
 
class Address {
    public function __construct(
        public readonly string $city,
        public readonly string $zip,
    ) {}
 
    public static function fromArray(array $data): self {
        return new self(
            city: $data['city'],
            zip: $data['zip'],
        );
    }
}

Why automate YAML-to-PHP conversion?

Writing PHP class definitions by hand from YAML is:

  • Tedious — especially for deeply nested or large YAML payloads
  • Inconsistent — naming conventions drift when done manually across a team
  • Fragile — when the YAML schema changes, hand-written models lag behind

PHP 8 typed properties and constructor promotion allow clean, concise data models — this converter targets modern PHP 8+ syntax.

This converter handles all of that automatically, giving you idiomatic PHP code that matches your YAML structure exactly.

PHP and YAML: what you need to know

PHP is a dynamically typed, server-side scripting language, powers Laravel, Symfony, and a large portion of the web. It uses class-based with typed properties for structured data — making it a natural fit for YAML-driven applications.

What the converter generates

Output uses PHP 8 constructor promotion with typed properties and readonly modifiers where appropriate. Includes fromArray static factory methods and follows PSR-12 coding standards.

A common gotcha

PHP's loose type coercion can mask type mismatches — adding declare(strict_types=1) enforces strict mode.

YAML input characteristics

YAML is a superset of JSON and supports multi-line strings, block scalars, and complex nested structures. YAML is the de-facto standard for cloud-native configuration — Kubernetes, GitHub Actions, and Ansible all use YAML.

When should I use this converter?

Use this for Laravel or Symfony projects where you need clean, typed DTO classes from API responses — avoiding raw array access throughout your codebase.

Common use cases

  • Generating typed DTOs for Laravel API resources and form requests
  • Creating value objects for Symfony components consuming external APIs
  • Producing typed models for PHP CLI scripts processing configuration files
  • Generating PHP models from Laravel/Symfony APIs API responses
  • Creating typed DTOs for WordPress plugins
  • Rapid prototyping with real YAML payloads
  • Keeping PHP structs in sync when YAML schemas evolve
  • Onboarding new team members by auto-generating the data layer
  • Validating YAML contract compatibility with PHP type definitions

Frequently asked questions

Does this converter support YAML Ain't Markup Language namespaces and nested structures?

Yes. YAML supports anchors (&) and aliases (*) for reusable values — this converter resolves them before generating types. The parser handles deeply nested structures and generates matching nested PHP class definitions.

How are optional fields handled in the PHP output?

Fields that may be absent or null in your YAML are marked as optional in the generated PHP code. Note: PHP's loose type coercion can mask type mismatches — adding declare(strict_types=1) enforces strict mode.

Can I use the output directly in a Laravel/Symfony APIs project?

Yes. The generated PHP code follows idiomatic patterns for Laravel/Symfony APIs — you can copy it directly into your project.

Does this work for large YAML payloads?

Yes. The converter is optimized for large and deeply nested YAML structures, running entirely in the browser without page reloads or server round-trips.

Related tools on LangStop

If you work frequently with YAML and PHP, bookmark this page to skip the manual model-writing step entirely.