Laravel does not react in any way to connecting to the database, why can this be so?

Question

Laravel

The default config is 'mysql'
, respectively, data for connecting to the database
is written in msyql But laravel does not react to this in any way - the data is entered correctly or not - it opens the site in the same way without errors
When trying to migrate, it gives out No such file - what file not found yet? He doesn’t even write what kind of file, well, complete nonsense.
By default, two migrations hang, what other files does it need for this

Answer 1

Execute
Laravel makes an optimized array with all the settings in one file, so that each time you don’t collect them from all files