I'm fairly new to campaign monitor and have been really impressed so far.
I'm now trying to create an automatic sign up on my site using php. I'm not too hot when it comes to api's though. Using the sample php code I have got the form submitting and creating a new client account.
I would like to know how I can work with the result it then gives back such as the client id? and any errors if the client isn't created?
For example how could I simply retrieve that client id into a variable which I can then use to update the billing information?
Hope that makes sense, any help would be much appreciated.