php - How do you make unique dates while seeding database with fzaninotto/faker? -

php - How do you make unique dates while seeding database with fzaninotto/faker? -

using https://github.com/fzaninotto/faker

i seeding table unique dates next 30 (30) days.

so tried following:

'date' => $faker->unique()->datetimebetween($startdate = "now", $enddate = "30 days")->format('y-m-d')

but yields redundant dates.

php database laravel-4