Breadcrumbs in PHP are a trail of events leading up to the primary error, providing critical context that can help reproduce steps and debug issues. The Sentry PHP SDK now supports native breadcrumb tracking, allowing developers to attach metadata such as network requests, database queries, or UI events to errors. To get started, ensure you're running the latest version of the SDK, then use the `record` method to capture breadcrumbs in your application. Automated instrumentation is available through integration with Monolog and the native error_reporting hook, enabling developers to easily implement breadcrumb tracking in their PHP applications. As the feature enters its early phase, Sentry invites feedback and encourages developers to open issues on the public GitHub repository.