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DBGp
DBGp (Debugger Protocol) is a common debugging interface primarily used by PHP debugging tools such as Xdebug. Operating typically over TCP port 9000, it facilitates communication between the IDE and the server for efficient debugging workflows including breakpoint management, code inspection, and execution control..
Overview: DBGp, or the Common Debugger Protocol, is an open-debugging protocol designed to enable communication between an IDE and an application runtime for debugging purposes. It’s widely adopted by PHP tools such as Xdebug and NetBeans, providing both machine-readable and efficient means of exchanging commands and responses.
Communication: DBGp primarily uses plain TCP sockets. The IDE connects to the server (or vice versa) and exchanges XML-formatted messages that encapsulate debugging commands such as setting breakpoints, stepping through code, inspecting stack information, or evaluating expressions.
Architecture: DBGp is platform-independent and language-agnostic by design but is most commonly utilized in the PHP ecosystem. Although port 9000 is unofficially standardized, it is widely used and configurable. Because communication is unencrypted by default, deployment is often limited to development environments or protected networks.