Technical Evaluation

High-Performance Hybrid Runtime: Spiral’s RoadRunner integration (PHP + Go) enables long-lived processes, reducing cold starts and improving throughput for high-traffic applications. This aligns well with microservices, APIs, and real-time systems (WebSockets, gRPC).
PSR Compliance: Full adherence to PSR-3, PSR-7, PSR-11, PSR-15, PSR-16, PSR-17 ensures interoperability with Laravel’s ecosystem (e.g., Monolog, HTTP clients, caching).
Modular & Extensible: Bootloaders, bridges, and scaffolding allow incremental adoption—ideal for monolithic-to-microservices migration or feature-specific upgrades.
ORM & Database: Cycle ORM (not Eloquent) offers high performance and schema-first design, which may require refactoring if the team relies heavily on Laravel’s Eloquent.
Event-Driven & CQRS: Native support for events, queues, and workflows (Temporal) enables scalable async processing, but Laravel’s event system would need migration.

Laravel Compatibility:
- Pros:
  - Shared PSR standards (e.g., PSR-15 middleware, PSR-3 logging).
  - RoadRunner can replace Laravel’s built-in server (e.g., php-fpm).
  - Queue workers (AMQP, SQS, Kafka) are direct replacements for Laravel Queues.
- Cons:
  - No Laravel-specific integrations (e.g., Blade, Artisan, Scout, Nova).
  - Service Container differences: Spiral uses dependency injection (DI) via attributes, while Laravel relies on bindings/configuration.
  - ORM mismatch: Cycle ORM ≠ Eloquent (requires data layer rewrite).
Migration Path:
- Phased adoption:
  1. Replace Laravel’s HTTP layer with Spiral + RoadRunner (gains performance).
  2. Migrate queues/jobs to Spiral’s queue system.
  3. Refactor ORM (Cycle ORM) for database access.
  4. Replace Artisan commands with Spiral’s console system.
- Hybrid approach: Use Laravel for legacy and Spiral for new microservices.

Risk Area	Severity	Mitigation Strategy
ORM Migration	High	Use Cycle ORM’s Eloquent-like facade or write adapters.
Service Container	Medium	Leverage PSR-11 interfaces for shared dependencies.
Middleware/Routing	Low	Spiral’s PSR-15 middleware is compatible with Laravel’s.
Artisan Commands	Medium	Rewrite or use Spiral’s console system.
Third-Party Packages	High	Audit for Laravel-specific dependencies (e.g., Scout, Cashier).
Performance Gains	Low	Benchmark RoadRunner vs. Laravel’s server.

Why Spiral?
- Is the goal performance optimization, microservices decomposition, or long-term maintainability?
- Does the team have Go/PHP hybrid experience (RoadRunner requires Go for some features).
ORM Strategy
- Can Cycle ORM replace Eloquent, or is a hybrid approach (e.g., Laravel for reads, Spiral for writes) viable?
Team Skills
- Is the team familiar with dependency injection, PSR standards, and attribute-based configuration?
Ecosystem Lock-in
- Are there critical Laravel packages (e.g., Laravel Cashier, Scout) that cannot be replaced?
Deployment Model
- Will the app run as long-lived processes (RoadRunner) or short-lived requests (traditional PHP-FPM)?

Integration Approach

Component	Laravel Equivalent	Spiral Alternative	Compatibility Notes
HTTP Server	PHP-FPM / Swoole	RoadRunner (PHP/Go)	High (RoadRunner supports HTTP/2, FastCGI).
Routing	Laravel Router	Spiral Router (PSR-15)	High (PSR-15 middleware interoperable).
Middleware	Laravel Middleware	PSR-15 Middleware	High (direct replacement).
ORM	Eloquent	Cycle ORM	Low (requires migration or adapters).
Queues	Laravel Queues	Spiral Queue (AMQP, SQS, etc.)	High (same drivers, but different API).
Logging	Monolog	Monolog Bridge	High (configurable via `MONOLOG_FORMAT`).
Authentication	Laravel Auth	Spiral Auth (RBAC, JWT, etc.)	Medium (different middleware stack).
CLI	Artisan	Spiral Console	Medium (rewrite commands).
Caching	Laravel Cache	PSR-16 Cache	High (same interfaces).
Events	Laravel Events	Spiral Events (PSR-14)	High (PSR-14 compatible).

Replace Laravel’s HTTP server with RoadRunner.
- Benefits: Lower latency, better concurrency, HTTP/2 support.
- Implementation:
```
composer require spiral/framework spiral/roadrunner-bridge
```
- Configure roadrunner.yaml and update server.php to use Spiral’s kernel.
Migrate queues to Spiral’s queue system.
- Replace Illuminate\Queue\QueueManager with Spiral\Queue\QueueManager.
- Update job handlers to extend Spiral\Queue\JobInterface.

Replace Service Container:
- Bind Laravel services to Spiral’s container using PSR-11 interfaces.
- Example:
```
$container->bindSingleton(\Illuminate\Contracts\Container::class, fn() => $laravelContainer);
```
Replace ORM (Highest Risk):
- Option A: Cycle ORM (native Spiral ORM).
- Option B: Write an Eloquent adapter for Cycle ORM.
- Option C: Use both (Laravel for reads, Spiral for writes).

Replace Artisan commands with Spiral’s console system.
Replace Blade with Twig or Spiral’s template engine.
Replace Laravel-specific packages (e.g., Scout, Cashier) with alternatives or rewrite.

Pros:
- PSR standards ensure interoperability with Laravel’s ecosystem.
- RoadRunner is drop-in for HTTP (no code changes needed for routes/middleware).
- Queue system is API-compatible with Laravel’s (same drivers).
Cons:
- No Blade/Twig integration (must use Spiral’s template engine or Twig bridge).
- Artisan commands must be rewritten.
- Laravel-specific packages (e.g., Laravel Nova, Scout) cannot be used.

Benchmark RoadRunner vs. Laravel’s server (ensure performance gains justify effort).
Migrate queues first (low risk, high reward).
Replace HTTP layer (RoadRunner).
Refactor ORM (Cycle ORM or adapter).
Replace CLI/Artisan (last step, as it’s most disruptive).

Pros:
- Long-lived processes (RoadRunner) reduce cold starts and memory churn.
- Anti-memory-leak tools improve stability in long-running apps.
- PSR compliance reduces vendor lock-in.
Cons:
- New framework = new learning curve (Spiral’s DI, bootloaders, Cycle ORM).
- Smaller ecosystem than Laravel (fewer community packages).
- RoadRunner requires Go (additional dependency for some features).

Pros:
- MIT License (no licensing costs).
- Active development (releases every