<pre>
$_GET = <?php var_export($_GET); ?>
$_POST = <?php var_export($_POST); ?>
$_REQUEST = <?php var_export($_REQUEST); ?>
$_SERVER = <?php var_export($_SERVER); ?>
$_ENV = <?php var_export($_ENV); ?>
$_COOKIE = <?php var_export($_COOKIE); ?>
$_FILES = <?php var_export($_FILES); ?>
</pre>