Assume the xampp folder is stored in drive D, configuration of the php.ini file located at D:/xampp/php/ zend_extension="D:/xampp/php/ext/php_xdebug.dll" xdebug.remote_enable=on xdebug.remote_handler=dbgp xdebug.remote_host=localhost xdebug.remote_port=9000 Do restart apache to enable this feature.