The PHP agent component discovers and monitors business transactions, application services, and backends in your PHP application. It injects Splunk AppDynamics instrumentation into the application at runtime.

The Splunk AppDynamics agent proxy is a Java process that handles the communication between the PHP agent and the Controller. The proxy reports performance metrics to the Controller, where the data is stored, baselined, and analyzed. You can access this performance data interactively using the Controller console or programmatically using the Splunk AppDynamics REST API.

The proxy component starts automatically when you start the PHP Agent. For some applications, such as for PHP CLI applications, you need to start the proxy separately from the agent. You need to provide for proxy startup either manually or in scripts.