hudson{root}199: more junk
<?
$a = "hello";
$$a = "again";
echo $a, "\n";
echo $hello, "\n";
echo $$a, "\n";
echo "$a $$a\n";
?>

Here's the result:

hudson{root}200: php junk
Content-type: text/html

hello
again
again
hello $hello
hudson{root}201: