xdebug is pretty okay. PHP is single threaded, the entry point well defined, var_dump/die/echo works wonders, debugable by curl and simple php -S nowadays. it

xdebug is pretty okay. PHP is single threaded, the entry point well defined, var_dump/die/echo works wonders, debugable by curl and simple php -S nowadays. it has orders of magnitude less complexity than the JVM, or even the various Python server runtimes (gunicorn, uwsgi, etc) at least in my experience. can you elaborate on what you see as the debug support deficiencies of PHP?