function register($varname, $defval=NULL)
{
if (array_key_exists($varname, $_SERVER)) {
$retval = $_SERVER[$varname];
} elseif (array_key_exists($varname, $_COOKIE)) {
$retval = $_COOKIE[$varname];
} elseif (array_key_exists($varname, $_POST)) {
$retval = $_POST[$varname];
} elseif (array_key_exists($varname, $_GET)) {
$retval = $_GET[$varname];
} elseif (array_key_exists($varname, $_ENV)) {
$retval = $_ENV[$varname];
} else {
$retval = $defval;
}
return $retval;
}
?>