Tested factorialization library.
- PHP >= 7.0
- Composer (if you dont have composer, visit https://getcomposer.org/download)
Install with composer: composer require vehsamrak/factorial
use Vehsamrak\Factorial\Factorial as FactorialCalculator;
$factorialCalculator = new FactorialCalculator();
$result = $factorialCalculator->factorialize(0); // $result == 1
$result = $factorialCalculator->factorialize(3); // $result == 6
$result = $factorialCalculator->factorialize(10); // $result == 3628800
To run tests clone this repository and install dependencies with composer install.
Then with built-in PHPUnit type: vendor/bin/phpunit