array(5) {
  [0]=>
  string(5) "apple"
  [1]=>
  string(6) "banana"
  [2]=>
  string(6) "orange"
  [3]=>
  string(6) "cherry"
  [4]=>
  string(4) "pear"
}

array(8) {
  [0]=>
  string(5) "apple"
  [1]=>
  string(6) "banana"
  [2]=>
  string(6) "orange"
  [3]=>
  string(6) "cherry"
  [4]=>
  string(4) "pear"
  ["vines"]=>
  string(6) "grapes"
  [5]=>
  string(5) "mango"
  [100]=>
  string(6) "tomato"
}

array(2) {
  [0]=>
  array(3) {
    [0]=>
    string(3) "dog"
    [1]=>
    string(3) "cat"
    [2]=>
    string(4) "bird"
  }
  [1]=>
  array(3) {
    [0]=>
    string(10) "guinea pig"
    [1]=>
    string(7) "hamster"
    [2]=>
    string(4) "rats"
  }
}

array(4) {
  [0]=>
  string(9) "pineapple"
  [1]=>
  string(5) "guava"
  [2]=>
  string(9) "raspberry"
  [3]=>
  NULL
}

array(3) {
  [0]=>
  string(5) "guava"
  [1]=>
  string(9) "raspberry"
  [2]=>
  NULL
}