Access random file from my server

Question

For example, I want to access a random image from /ex/images.
I habe 3 files in this folder:
bathroom.png
sleep.png
grass.png
Is there a way to access one of these files randomly?

Answer 1

1) collect n images name in a array b
2) generate a random number r which value is from 0 to n-1
3) b[r] is your random image name

Answer 2

@KrOW Is 1 possible with js or Jquery?

Answer 3

Sure, but like all client-side code, you will expose some data and i dont know if it allowed in your context... But, like sql_assassin ask you, what is your purpose?