We're planning to connect our CRM to Sebre so we can get the order details from the PNR. What API can be used to achieve this? is there any sample code in PHP? (its something like tripcase). We need to get segments details, price, tax ..etc for specific PNR created from our PCC.
TravelItineraryReadRQ (soap based service) should give you all you need:
https://developer.sabre.com/docs/read/soap_apis/management/itinerary/Get_Itinerary