Description:
------------
I think your mast look code/ Sorry but my english is not good



Reproduce code:
---------------
<?
	$users=explode('.',".1.2.3.4.");
	foreach ($users as $key=>&$user){
		if (empty($user))
			unset($users[$key]); //it bag?
		$user=1; //not work
	}
	var_dump($users); //see result

?>

Expected result:
----------------
array(6) {
  [1]=>
  &int(1)
  [2]=>
  &int(1)
  [3]=>
  &int(1)
  [4]=>
  &int(1)
}

Actual result:
--------------
array(4) {
  [1]=>
  string(1) "1"
  [2]=>
  string(1) "2"
  [3]=>
  string(1) "3"
  [4]=>
  string(1) "4"
}