This package is using package fzaninotto/faker as base. A few basic static methods has been added for easy access + a little more.
Faker can easily be reached through singleton method faker(). Documentation for Faker can be found on https://packagist.org/packages/fzaninotto/faker
$faker = TestData::faker();
$faker->...
// Get random number.
$number = TestData::number();
// Get random number between 10 and 20.
$number = TestData::number(10, 20);
// Get random string (alpha + numeric) 20 characters long.
$string = TestData::string();
// Get random string (alpha + numeric) 10 characters long.
$string = TestData::string(10);
// Get random string (alpha).
$string = TestData::stringAlpha();
// Get random string (alpha) 10 characters long (uppercase).
$string = TestData::stringAlpha(10, true);
// Get random string (numeric) 16 characters long (uppercase).
$string = TestData::stringNumeric(16, true);
// Get list of numbers from 10 to 20 as array.
$numbers = TestData::numbers(10, 20);
// Get 20 (default 10) people (id, firstname and lastname).
$people = TestData::people(20);