Call to undefined function str_random()

[Daryl Aranha]

Error:
Symfony\Component\Debug\Exception\FatalThrowableError : Call to undefined function str_random()
line: laravel-react/database/seeds/UsersTableSeeder.php:21

How to reproduce:
run: php artisan cron:refresh-database

Solution:
https://stackoverflow.com/a/58163479/8550661