PHP SOAP client to connect to MS Exchange 2007

I need php code that connects to MS Exchange 2007 Web Services over https and authenticates with username, password and domain.? $0$0$0$0The code needs to do two things.? $0$01) Get the next 5 appointments in the calender of the logged in user.? $0$02) Add a new appointment to the calendar.$0$0$0$0$0$0I'd prefere if the code use the built-in soapclient() function in PHP5. The code needs to have comments about what it's doing, as I plan to implement the code into another php project.$0$0