How do you call this way of recreive data?

[IIYAMA]

How do you call this way of recreive data? and is this a good or bad way?

pls don't start about function etc.... it is just a sample..

  
test = {} 
test[1]=2 
test[2]=3 
test[3]=4 
test[4]=1 
  
A = 4 
B = test[A] 
  
outputChatBox (B) -- output in chatbox 1 
  

[myonlake]

This means you are fetching data from a table. It is a good way to make your code with less lines/unnecessary crap.