Choosing Random Values

[Emera]

I am trying to make a system, just for testing purposes that picks out a random number or word from an array and echo it.
Example;

PHP Code:

//#CLIENTSIDE
function onCreated() {
  //Define array
  this.array = {"One", "Two", "Three", "For"};
}

function onWeaponFired() {
  //Do stuff here
  echo(result);
} 


I want it to randomly select either of the values in the array, and echo the result. Any ideas?