Server Variables"; foreach ($_SERVER as $key=>$val) echo "".$key."= ".$val." "; ?> Session Variables"; foreach ($_SESSION as $key=>$val) echo "".$key."= ".$val." "; ?> POST Variables"; foreach ($_POST as $key=>$val) echo "".$key."= ".$val." "; ?> GET Variables"; foreach ($_GET as $key=>$val) echo "".$key."= ".$val." "; ?>