Laravel 6 config()->get('database.connections.mysql') not matching DB:connection() - php

Question

Prerequisites
In my local environment I am working with multiple tenants and Redis (Auth required).
To serve the project I am using Valet.
For this case I am addressing these two connections:
- basic_foo (is defined in my .env)
- tenant_foo (is the one to change to during a request)
Until now I successfully changed the connections like so:
config()->set('database.connections.mysql',
array_merge(
config()->get('database.connections.mysql') ,
['database' => 'tenant_foo']
);
Problem
However, now I am seeing an issue with the query builder, keeping or falling back to the basic connection.
I get the expected connection results of tenant_foo (same for Redis) when I run
dd(config()->get('database.connections.mysql'));
I get the wrong but apparently active results of basic_foo when I run
dd(\DB::connection()); // returns Illuminate\Database\MySqlConnection
So all in all the app will return this Illuminate\Database\QueryException
SQLSTATE[42S02]: Base table or view not found: 1146 Table 'basic_foo.table_bar' doesn't exist...
where it should search for
'tenant_foo.table_bar'
Things that did not solve the problem yet
restarting Redis
reinstalling Redis
php artisan config:cache
php artisan cache:clear
php artisan route:clear
php artisan view:clear
php artisan optimize
composer dump-autoload
Simply changing the database name to tenant_foo like below is not enough, as the config array remains the same of basic_foo.
\DB::connection()->setDatabaseName('tenant_foo');
Thoughts
I want to change the config-array the of \DB::connection(), but I don't know another way than the config->set().
I installed Telescope could this affect the db connection?
Any other ideas?

Answer 1

To dynamically change database name you should use:
DB::disconnect();
Config::set('database.mysql.database', 'tenant_foo');
DB::reconnect();

Answer 2

This worked for me:
\DB::disconnect('mysql');
Config::set('database.connections.mysql.database', 'tenant_foo');
\DB::reconnect('mysql');