Hi there!
I'm trying to achieve external validation of a field, I've read the AdministrationManual and it has a "php" example.
I get how you retrieve the data (GET method, why you dont use POST?) but I don't know how to generate the response to the hotspot URL.
Where do I have to send the response and wich parameters do I have to send?
Maybe I'm failing to see something, I'm not a programmer, please help