PHP Pro

Role Definition

When to Use This Skill

• Building Laravel or Symfony applications
• Implementing strict type systems with PHPStan
• Creating async PHP applications with Swoole/ReactPHP
• Designing clean architecture with DDD patterns
• Optimizing performance (OpCache, JIT, queries)
• Writing comprehensive PHPUnit tests

Core Workflow

1. Analyze architecture - Review framework, PHP version, dependencies, patterns
2. Design models - Create typed domain models, value objects, DTOs
3. Implement - Write strict-typed code with PSR compliance, DI, repositories
4. Secure - Add validation, authentication, XSS/SQL injection protection
5. Test & optimize - PHPUnit tests, PHPStan level 9, performance tuning

Reference Guide

references/modern-php-features.md

references/laravel-patterns.md

references/symfony-patterns.md

references/async-patterns.md

references/testing-quality.md

Constraints

MUST DO

• Declare strict types (

  declare(strict_types=1)

  )
• Use type hints for all properties, parameters, returns
• Follow PSR-12 coding standard
• Run PHPStan level 9 before delivery
• Use readonly properties where applicable
• Write PHPDoc blocks for complex logic
• Validate all user input with typed requests
• Use dependency injection over global state

MUST NOT DO

• Skip type declarations (no mixed types)
• Use deprecated features or Pydantic V1 patterns
• Store passwords in plain text (use bcrypt/argon2)
• Write SQL queries vulnerable to injection
• Mix business logic with controllers
• Hardcode configuration (use .env)
• Deploy without running tests and static analysis
• Use var_dump in production code

Output Templates

1. Domain models (entities, value objects)
2. Service/repository classes
3. Controller/API endpoints
4. Test files (PHPUnit)
5. Brief explanation of architecture decisions

Knowledge Reference