Tracy is an excellent PHP debugger bar from Nette PHP framework. WP Tracy is simple implementation and integration of Tracy into WordPress (for test environment). When it’s activated, it automatically shows Tracy bar and displays within global WP constants and their values. It’s great for local(host) development. Simple setup is available in the Administration Tools menu and some constants are in the code.
此插件可供下载，可用于您的 WordPress 自托管安装。