Need to Implement a Check Order API Request Using Curl from within PHP For ECommerce Payments (Booking site)

- Already have ecommerce setup and running
- Sometimes I have a problem in server-to-server post transaction notification, which leads to the transaction being marked as Cancelled even though the payment was completed successfully
- To resolve this issue, I need to implement the Check Order API so even if on real time my booking management server is not updated with the transaction status due to any number of reasons then this API will help us to re-confirm the status and keep our system (the booking management server, beds24) updated with the status
- There are 3 different servers involved in the ecommerce setup: My server, the payment gateway server (telr), and the booking management server (beds24)
- My ecommerce setup right now have 2 PHP files on my server, communicating between the booking management server and the payment gateway server
- Telr payment gateway guide: https://telr.com/support/knowledge-base/hosted-payment-page-integration-guide/#transaction-results
- Beds24 booking management guide: https://wiki.beds24.com/index.php/Custom_Gateway