# PHP SDK developer guide

- [PHP SDK developer guide](https://docs.temporal.io/develop/php.md)
- [Activities - PHP SDK](https://docs.temporal.io/develop/php/activities.md)
- [Asynchronous Activity Completion - PHP SDK](https://docs.temporal.io/develop/php/activities/asynchronous-activity.md)
- [Activity Basics - PHP SDK](https://docs.temporal.io/develop/php/activities/basics.md)
- [Activity execution - PHP SDK](https://docs.temporal.io/develop/php/activities/execution.md)
- [Activity Timeouts - PHP SDK](https://docs.temporal.io/develop/php/activities/timeouts.md)
- [Best Practices - PHP SDK](https://docs.temporal.io/develop/php/best-practices.md)
- [Debugging - PHP SDK](https://docs.temporal.io/develop/php/best-practices/debugging.md)
- [Testing - PHP SDK](https://docs.temporal.io/develop/php/best-practices/testing-suite.md)
- [Client - PHP SDK](https://docs.temporal.io/develop/php/client.md)
- [Temporal Client - PHP SDK](https://docs.temporal.io/develop/php/client/temporal-client.md)
- [Platform - PHP SDK](https://docs.temporal.io/develop/php/platform.md)
- [Enriching the user interface - PHP SDK](https://docs.temporal.io/develop/php/platform/enriching-ui.md)
- [Observability - PHP SDK](https://docs.temporal.io/develop/php/platform/observability.md)
- [Set up your local development with the PHP SDK](https://docs.temporal.io/develop/php/set-up-your-local-php.md)
- [Workers - PHP SDK](https://docs.temporal.io/develop/php/workers.md)
- [Run Worker processes - PHP SDK](https://docs.temporal.io/develop/php/workers/run-worker-process.md)
- [Workflows - PHP SDK](https://docs.temporal.io/develop/php/workflows.md)
- [Workflow Basics - PHP SDK](https://docs.temporal.io/develop/php/workflows/basics.md)
- [Cancel a Workflow - PHP SDK](https://docs.temporal.io/develop/php/workflows/cancellation.md)
- [Child Workflows - PHP SDK](https://docs.temporal.io/develop/php/workflows/child-workflows.md)
- [Continue-As-New - PHP SDK](https://docs.temporal.io/develop/php/workflows/continue-as-new.md)
- [Workflow message passing - PHP SDK](https://docs.temporal.io/develop/php/workflows/message-passing.md)
- [Schedules - PHP SDK](https://docs.temporal.io/develop/php/workflows/schedules.md)
- [Side Effects - PHP SDK](https://docs.temporal.io/develop/php/workflows/side-effects.md)
- [Workflow Timeouts - PHP SDK](https://docs.temporal.io/develop/php/workflows/timeouts.md)
- [Timers - PHP SDK](https://docs.temporal.io/develop/php/workflows/timers.md)
- [Versioning - PHP SDK feature guide](https://docs.temporal.io/develop/php/workflows/versioning.md)