zamight

I use PSR-2. So I would break a new line for a function curly bracket.

I don't know the host's code. Since the form submits via POST and your only passing two parts of the form when there are three. Including the button which is name="Submit" and value="Login" this could pose a problem from the host if they check for the value of the button. This is just a guess. I don't really use curl to login websites.

Currently, way your code is the setup you can only access the $message array inside the scope of your while loop. Anything else trying to access the $message array outside the scope of the while loop will be null.