# Activities

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> Activity Definitions, Activity Execution, Activity Timeouts, and Asynchronous Activity Completion in the Temporal PHP SDK.

![PHP SDK Banner](https://docs.temporal.io/img/assets/banner-php-temporal.png)

## Activities

- [Activity basics](/develop/php/activities/basics)
- [Activity Execution](/develop/php/activities/execution)
- [Timeouts](/develop/php/activities/timeouts)
- [Asynchronous Activity Completion](/develop/php/activities/asynchronous-activity)