array(2) {
  [0]=>
  string(6) "apples"
  [1]=>
  string(7) "oranges"
}
<br>Array before call:<br>array(3) {
  [0]=>
  array(2) {
    [0]=>
    string(6) "apples"
    [1]=>
    string(7) "oranges"
  }
  [1]=>
  string(6) "grapes"
  [2]=>
  string(5) "pears"
}
<br>Args contents:<br>array(3) {
  [0]=>
  array(2) {
    [0]=>
    string(6) "apples"
    [1]=>
    string(7) "oranges"
  }
  [1]=>
  string(6) "grapes"
  [2]=>
  string(5) "pears"
}
<br>Values contents before shift:<br>array(2) {
  [0]=>
  string(6) "grapes"
  [1]=>
  string(5) "pears"
}
<br>Values contents after shift:<br>array(4) {
  [0]=>
  string(6) "apples"
  [1]=>
  string(7) "oranges"
  [2]=>
  string(6) "grapes"
  [3]=>
  string(5) "pears"
}
<br>Array after call:<br>