Random::string deprecated?

Question

I'm using Random class to generate a password for a new user in my custom module.

I added the namespace in my module controller: use \Drupal\Component\Utility\Random;
And I am using it like this:

$user = User::create();
$user->setPassword(Random::string());

Problem is this function seems to be deprecated, however I found it in the Drupal API documentation.
Here is the error I get:

Deprecated function: Non-static method Drupal\Component\Utility\Random::string()

Did I use it wrong or do you know a better way to generate a random string ?

Drupal version: 8.4

Answer 1

Random::string isn't a static function, so you can't call it statically.

Well, you can (PHP is, erm, interesting like that), but it will throw a fatal error in future versions of the language, hence the warning now. To clarify, you're not being warned that Random::string itself is deprecated, just the method you're using to invoke it.

Get an instance instead and use that:

$random = new \Drupal\Component\Utility\Random();
$string = $random->string();