composer urbanproof/faker-finnish-idents
or add
"urbanproof/faker-finnish-idents": "^1.0"
$faker = (new \Faker\Factory())::create();
$faker->addProvider(new Urbanproof\FakerIdents\IdentProvider($faker));
echo $faker->companyIdent; // => "5235981-6"
echo $faker->personIdent; // => "170379-921F"
echo $faker->personIdent(DateTime::createFromFormat('d.m.Y', '01.01.2000'); // => "010100A3967"
use const Urbanproof\FakerIdents\GENER_MALE;
echo $faker->personIdent(DateTime::createFromFormat('d.m.Y', '31.12.1999'), GENER_MALE); // => "311299-4059"