Description:
------------
The problem is the location of the declaration of the used callback-function in array_walk(). If this declaration is inside a switch-block (but if-blocks work!), array_walk() crashes php.

The following sample-code illustrates the problem. If the function declaration is moved out of the switch-block, everything works fine.

Reproduce code:
---------------
<?
$cond = 1;

switch ($cond) {
case 1:
	$arr = array('Line' => ' 1');

	print_r($arr);

	function trim_it(&$item, $key) { $item=trim($item); }

	array_walk($arr, 'trim_it');

	print_r($arr);
	break;
}
?>

Expected result:
----------------
Array
(
    [Line] =>  1
)
Array
(
    [Line] => 1
)


Actual result:
--------------
Ask Dr. Watson for NT4 ;-)