Updated example with a little snippet using in memory database :) P. S: the XSS protection in this example is not needed at all because I check the input as boolean value. To see results in reverse order you specify order?desc.
First, using the prices as keys isn't really the best way to go; if two products have the same price they'll overwrite eachother. It's better to use unique keys (the default ones work) and put the price in the subarray as well.
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.