Can't read new config variables in laravel 5.4

Question

I added a new config variable to the config/app.php file in laravel like this

'foo' => 'pass'

but when I tried reading it using config('app.foo') I keep getting null while other variables return correct values. What do I need to do?

Answer 1

Syntax you're using is correct, try to clear configuration cache by using this command:

php artisan config:clear