Test environment: Nginx 1.18.0-PHP-7.3 -MySQL 5.6.49
1. Create a website, upload the source code to the root directory of the website, and unzip it
2. Create a database and fill in configuration information
3. Modify the payment file /public/ptpaysdk/core/ptpay_config.php
Installation: Upload the source code to the server and visit /install to install it.