As others have stated, it is only available in bleeding edge PHP. You could do something like this ( answer to a similar question ).
You're probably using old version of PHP not supporting get_result() as stated on manual page.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.