Laravel Str :: случайная
use Illuminate\Support\Str;
$random = Str::random(40);
Modern Marten
use Illuminate\Support\Str;
$random = Str::random(40);//select random value from array
use Illuminate\Support\Arr;
$array = [1, 2, 3, 4, 5];
$random = Arr::random($array);
//generate random string of specific length
use Illuminate\Support\Str;
$random = Str::random(40);