Overview of yansongda/pay SDK v3
v3The yansongda/pay SDK v3 is a payment integration library for Alipay and WeChat Pay. It features a redesigned architecture compared to v2 for better extensibility and ease of use. Key capabilities include multi-tenant support, Swoole support, a flexible plugin mechanism, and a rich event system. It abstracts the complexity of JSON and XML construction for payment APIs and includes built-in methods for automatically retrieving WeChat public certificates. The SDK is compliant with PSR standards (PSR2, PSR3, PSR4, PSR7, PSR11, PSR14, PSR18), making it compatible with various PHP frameworks.