Chapter 4: update xdebug config via environment variables

[vincentwongso]

Page 53, doing docker-compose restart doesn't seems to update the environment variables inside an existing container. The solution is to rebuild the container to make sure the environment variables are updated in the app container.

Refer to docker's manual here: https://docs.docker.com/compose/reference/restart/

[paulredmond]

Thanks @vincentwongso!

I have a document with Errata and the text will eventually be updated with the corrected text.

Here's the errata reference:

https://github.com/bitpressio/docker-for-php-developers-errata/blob/master/errata.md#no_entry_sign-page-53---incorrect-information-about-env-changes

[vincentwongso]

Thanks @paulredmond, I should have checked the errata first.

[paulredmond]

No worries @vincentwongso 👍 I hope to get a new release out once I wrap up the videos and collect errata from readers.