Hello World!
Hello you!
2 4 dogs
0
1
2
3
4
0 => hi
1 => hello
2 => goodbye
array(3) {
  [0]=>
  string(2) "hi"
  [1]=>
  string(5) "hello"
  [2]=>
  string(7) "goodbye"
}
Array
(
    [0] => hi
    [1] => hello
    [2] => goodbye
)


integer
7