$sec = ((x($_GET,'sec')) ? $_GET['sec'] : '');
$dfrn_version = ((x($_GET,'dfrn_version')) ? (float) $_GET['dfrn_version'] : 2.0);
$perm = ((x($_GET,'perm')) ? $_GET['perm'] : 'r');
$sec = ((x($_GET,'sec')) ? $_GET['sec'] : '');
$dfrn_version = ((x($_GET,'dfrn_version')) ? (float) $_GET['dfrn_version'] : 2.0);
$perm = ((x($_GET,'perm')) ? $_GET['perm'] : 'r');