Hi thanks for getting back to me. I've declared $username as public in TableWriter but not sure what you mean "You're just using $username in writeTable, a local variable which is not defined anywhere" - i still cant get this to work. Something about the way i am declaring and trying to use $username. Even if i try and print it out in the construct method after i've assigned it a value i still always get "Notice: Undefined variable: username".