Added comments

Also hiding the mail/age if said so by the user

website/public/API/loadGroups.php

@@ -8,8 +8,10 @@ require_once ("../../queries/group_member.php");
 
 require_once("../../queries/user.php");
 
+// Check if the user is allowed to load them.
 if (isset($_SESSION["userID"]) &&
     getRoleByID($_SESSION["userID"]) != 'banned') {
+    // Echo the limited or unlimited groups.
     if (isset($_POST["limit"])) {
         echo selectLimitedGroupsFromUser($_SESSION["userID"], (int)test_input($_POST["limit"]));
     } else {