long sum

LongSum

A PHP class to sum very long numbers.

Example:

    $result = LongSum::Sum(
        '111222000111000222000111000000000445',
        '111333000111000333000111000000000555'
    );
    echo $result; // 222555000222000555000222000000001000

Steps to execute tests examples inside a Docker container

Clone project:

git clone https://github.com/elmao79/long-sum.git

Create Docker container where execute tests:

cd long-sum/Docker
docker-compose up -d

Install dependencies (PHPUnit):

docker exec -it php-long-sum composer install

Execute tests:

docker exec -it php-long-sum composer test