Is this a bug?

Hello, I have this code, which is a cooked down code of something bigger. So don't ask what it's for. The problem is that I can't get this script working the way I like it at all. Maybe it's a bug. Maybe you have another suggestion? Somewhere in the middle section i have wrote test1 and test2 as a comment. If you activate test2 instead of test1, then you will have some output(not the expected output), else I just see a page saying:"The page cannot be displayed". I think it's very strange, any ideas? Try inserting this into a file and try yourself. /Stig <? $side = 1; function grabkeys ($felt, $key, $side) { global $newarray; $stopkey = array ("A","Z");//De key-navne som den ikke skal gemme. If (!in_array($key , $stopkey)) { if ($felt == $side) { $newarray[] = $key;}; }; }; function showkeys ($felt, $key) { global $newarray; //echo count($newarray) . "-count newarray<br>"; // //echo "<pre>" . $newarray[0] . "</pre>-newarray<br>"; //test2 echo $newarray[0] . "-newarray<br>"; //test1 }; $row = array ("A"=>"1","B"=>"1","C"=>"1","D"=>"1","E"=>"1","F"=>"1","Z"=>"1"); array_walk ($row, 'grabkeys', $side); array_walk ($row, 'showkeys'); ?>