- How do I replace Carbon::now() or now() helpers in Laravel with lcobucci/clock?
- Register the clock in Laravel’s container as a singleton, then inject the `Clock` interface into your classes. Replace direct calls like `Carbon::now()` with `$this->clock->now()`. For example, bind `SystemClock::fromUTC()` in `AppServiceProvider` and use dependency injection in your services.
- Does lcobucci/clock work with Laravel’s testing tools like Pest or PHPUnit?
- Yes, `FrozenClock` lets you set a fixed time for tests, eliminating flaky time-dependent logic. Use it in test setups to mock time, and avoid Laravel’s `travel()` or Carbon’s time manipulation. Works seamlessly with Pest/PHPUnit for deterministic testing.
- What Laravel versions and PHP versions does lcobucci/clock support?
- The package requires PHP 8.4+ (as of v3.6.0). It’s framework-agnostic but fully compatible with Laravel 10+ and modern PHP. If your Laravel app uses PHP 8.1–8.3, pin to an older version (e.g., v3.5.0) or check for forks supporting older PHP.
- Can I use lcobucci/clock for timezone-aware applications in Laravel?
- Absolutely. `SystemClock` supports explicit timezone configuration (e.g., `SystemClock::fromTimezone(new DateTimeZone('Europe/London'))`). This ensures consistent timezone handling across multi-region Laravel deployments, reducing bugs from implicit timezone assumptions.
- How does lcobucci/clock improve performance in high-frequency time calls?
- While `SystemClock` creates a `DateTimeImmutable` on every `now()` call, the overhead is minimal for most use cases. For hot paths (e.g., logging middleware), cache the clock instance or use a cached `DateTimeImmutable` to avoid repeated instantiation.
- What’s the migration path from Carbon/DateTime to lcobucci/clock in Laravel?
- Start by registering the clock in Laravel’s container, then refactor business logic to inject the `Clock` interface. Replace direct `Carbon::now()` calls with `$this->clock->now()`, and use `FrozenClock` in tests. Tools like Rector can automate search-and-replace for legacy code.
- Are there alternatives to lcobucci/clock for Laravel time abstraction?
- Yes, alternatives include Symfony’s `ClockInterface` (PSR-20 compliant) or Carbon’s `CarbonImmutable`. However, `lcobucci/clock` is lightweight, focuses solely on time abstraction, and integrates cleanly with Laravel’s DI container. It’s ideal for apps prioritizing testability and PSR standards.
- How do I handle dynamic timezone changes in Laravel with lcobucci/clock?
- Since `SystemClock` is immutable, configure it at runtime using Laravel’s context (e.g., middleware or request-scoped bindings). For dynamic timezones, bind a `TimezoneAwareClock` wrapper or use Laravel’s `app()->setLocale()` to adjust the clock’s timezone contextually.
- Does lcobucci/clock support Laravel’s queue/job scheduling?
- Yes, inject the `Clock` interface into jobs or queue workers. Use `SystemClock` for real-time scheduling and `FrozenClock` in tests to simulate delayed jobs. This ensures consistent time handling across Laravel’s queue system without relying on `now()` or Carbon.
- How do I test time-sensitive features like rate limiting or token expiration in Laravel?
- Use `FrozenClock` to set a fixed time in tests, then verify logic against that timestamp. For example, set `FrozenClock::fromUTC('2023-01-01')` and assert that rate limits or token expirations behave deterministically. This replaces Laravel’s `travel()` for more maintainable tests.