How to access method return from if statement in Ruby?

I have a method that returns an array, like this:

def foobar(foo, bar)
  if foo != bar
    [foo, bar]
  end
end

Now, I want to call this method from inside my code using an if statement. How do I access the array values without having to duplicate the method?

if foobar("baz", "qux")
    foo = foobar("baz", "qux")
    puts foo[0], foo[1]
end

For further clarification, I mean something along the lines of $~ when you call a regex match in an if statement.