Retest with "killer" params  

Raw display of $_GET:
sts =>    


$_GET:
array (
  'sts' => 'new value of $_GET["sts"]',
)
$_GET has been changed but the same field in $_REQUEST is unchanged.
 
$_REQUEST ($_GET, $_POST and $_COOKIE):
array (
  'sts' => '',
)

$_SERVER:
array (
  'SCRIPT_URL' => '/test/',
  'SCRIPT_URI' => 'http://rhaworth.com/test/',
  'HTTP_X_CC_ID' => 'ccc04-02',
  'HTTP_HOST' => 'rhaworth.com',
  'HTTP_USER_AGENT' => 'CCBot/1.0 (+http://www.commoncrawl.org/bot.html)',
  'HTTP_ACCEPT' => 'text/html,application/xhtml+xml,text/xml;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5',
  'HTTP_ACCEPT_LANGUAGE' => 'en-us,en;q=0.5',
  'HTTP_ACCEPT_ENCODING' => 'gzip',
  'HTTP_ACCEPT_CHARSET' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
  'HTTP_CONNECTION' => 'close',
  'HTTP_CACHE_CONTROL' => 'no-cache',
  'HTTP_PRAGMA' => 'no-cache',
  'PATH' => '/usr/local/bin:/usr/bin:/bin',
  'SERVER_SIGNATURE' => '',
  'SERVER_SOFTWARE' => 'Apache',
  'SERVER_NAME' => 'rhaworth.com',
  'SERVER_ADDR' => '174.142.109.139',
  'SERVER_PORT' => '80',
  'REMOTE_ADDR' => '38.107.191.119',
  'DOCUMENT_ROOT' => '/www/',
  'SERVER_ADMIN' => '110mb.server@gmail.com',
  'SCRIPT_FILENAME' => '/www/com/r/h/a/w/o/r/t/h/rhaworth/htdocs/test/index.php',
  'REMOTE_PORT' => '13480',
  'GATEWAY_INTERFACE' => 'CGI/1.1',
  'SERVER_PROTOCOL' => 'HTTP/1.1',
  'REQUEST_METHOD' => 'GET',
  'QUERY_STRING' => 'sts',
  'REQUEST_URI' => '/test/?sts',
  'SCRIPT_NAME' => '/test/index.php',
  'PHP_SELF' => '/test/index.php',
  'REQUEST_TIME' => 1283974611,
)

$_SESSION:
NULL

getdate():
Array
(
    [seconds] => 51
    [minutes] => 36
    [hours] => 21
    [mday] => 8
    [wday] => 3
    [mon] => 9
    [year] => 2010
    [yday] => 250
    [weekday] => Wednesday
    [month] => September
    [0] => 1283974611
)