[kh99]

Oh, I wish it were true, but in fact that problem is probably why it didn't work before. I should have thought of making sure that it was right.

Anyway, here we go again : I found this in class_profileblock.php (the same file where the hook is called):

$requirements = $this->registry->db->query_read_slave("
	SELECT blockid, requirement
	FROM " . TABLE_PREFIX . "profileblockprivacy
	WHERE userid = " . intval($this->profile->userinfo['userid']) . "
");

So maybe you can use intval($this->profile->userinfo['userid']).