<?php
$items = array(1,2,3);

foreach($items as &$item) {
}

foreach($items as $item) {
    var_dump($items);
    echo $item . "\n";
}

?>

array(3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  &int(1)
}
1
array(3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  &int(2)
}
2
array(3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  &int(2)
}
2