Normally, the application structure look like this:
\root-directory \application \config application.php view.php \models \routes index.php \views \helpers MyApplication.php \public index.php composer.json
public/index.php
Normally, the application structure look like this:
\root-directory \application \config application.php view.php \models \modules \content \routes \views ContentApplication.php \admin \routes \views AdminApplication.php \public index.php composer.json
public/index.php