Datadog offers App Analytics for PHP to help developers monitor performance, identify bottlenecks and optimize their users' experience. The tool provides distributed tracing, detailed performance metrics, and auto-instrumented frameworks and libraries. It also includes a Service Map that visualizes the application's component services and request pathways between them. Datadog APM features such as high-level service overview, span summary, Watchdog, traces and flame graphs, correlating traces and logs, App Analytics for customer-level insight, and flexible dashboards can be used to optimize PHP performance.