As a general case, rather than having PHP execute several commands sequentially, I write a shell script that does everything I need, then call it from PHP. There's one fewer link in the chain when debugging, and I find I a lot easier.
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.