I have set up a checkboxgroup as below pics:
I tried to select all boxes to see if the database correclty shows.
As strange at it looks, the first selected option always is "0"
and the debugger:
[einsteige_ort] => Array ( [0] => 0 [1] => Gebenstorf [2] => Trafo [3] => Schademuehle [4] => Eurobus [5] => Lauffohr [6] => Banhof [7] => X )
Why that and is it there a workaroud?