Editing Xdebug.ini Configuration For XDebug Version 3

Settings for XDebug version 3 on the Docker server are specified in `xdebug.ini`. <ref>[https://xdebug.org/docs/all_settings XDebug Settings] -- XDebug Docs</ref>, <ref>[https://xdebug.org/docs/upgrade_guide XDebug Upgrade Guide] -- XDeubg Docs</ref>

<pre>
zend.extension="/usr/local/lib/php/extensions/no-debug-non-zts-20190902/xdebug.so"
xdebug.mode=debug
xdebug.start_with_request=yes
xdebug.remote_port=9003
xdebug.session="PHPSTORM"
xdebug.remote_enable=1
xdebug.client_host=192.168.123.107
xdebug.remote_log="/tmp/xdebug.log"
</pre>

* `zend.extension` is the path to the xdebug library that is installed via `Dockerfile`. If the version of XDebug changes, this path will need to be updated to match the installed library file.
* `xdebug.mode` enables XDebug.
* `xdebug.start_with_request` starts the debugger.
* `xdebug.remote_port` specifies the XDebug port. The default for XDebug version 3 is 9003. This must match the PHPStorm setting under '''Preferences''' > '''PHP''' > '''Debug''' > '''XDebug''' > '''Debug Port'''. (The default port for version 2 was 9000.)
* `xdebug.session` specifies the IDE key used the IDE to connect to XDebug. This matches the ```IDE Key``` setting in PHPStorm's PHP Remote Debug Run Configuration. (`xdebug.session` replaces `xdebug.idekey` for XDebug 2.)
* `xdebug.client_host` specifies the IP of the client running the IDE. (`xdebug.client_host` replaces `xdebug.remote_host` for XDebug 2.)

See [[xdebug.ini Configuration For XDebug Version 2|xdebug.ini settings for XDebug version 2]] for legacy settings.