Documentation - all settings This section describes all available configuration settings available in Xdebug. Unless specifically mentioned, each setting can be set in php.ini, files like 99-xdebug.ini, but also in Apache's .htaccess and PHP-FPM's .user.ini files. XDEBUG_CONFIG environment variable # A select set of settings can be set through an XDEBUG_CONFIG environment variable. In this situati