Yii2 PDOException who knows how to deal with this?

Question

PHP

Good people, tell me how to overcome PDOException, so I'm trying to go to " localhost/backend/web " and it shows me something like this "SQLSTATE[HY000] [1049] Unknown database 'yii2advanced'"! I myself see the name of this database for the first time! a completely different database is registered in the common/config/db.php directory, and it is friends with frontendom, but for some reason it doesn’t want to be with backendom! Guess who's been through this before?

Answer 1

vegibit.com/how-to-install-the-advanced-template-i...

Answer 2

it would be so simple, it would probably not be interesting, but why then does the frontend work with the same database that is registered in common/config/db.php and the backend should also work with it, the rule is the same for everyone

Answer 3

So create a database