How to hide lines in git?

Question

git

Getting acquainted with the git
there is a config.php file
It has uppercase constants

define('APP', 'app/');
define('MAIN', 'main/');
...
define('DB_PASS', '555555') // <- Вот как скрыть эту строку?

I would like to dump everything in the github automatically, but changing passwords all the time is not fun. How can I hide certain fields-strings in a script?

Answer 1

it is customary to save such things in a separate file (".env", for example), which, of course, should not fall into git.