1. Installing GPWebPay Core
Requirements
GPWebPay Core main requires PHP ^7.4 or ^8.0 using the latest version of PHP is highly recommended.
GPWebPay Core requires the ext-openssl extensions
Composer
Simple add a dependency on``pixidos/gpwebpay-core`` to your project’s
composer.json
file.If you use Composer to manage the dependencies of your project:
composer require pixidos/gpwebpay-core