TinyButStrong Error (Merge PHP global variables):

Hi,
i've written a class and in a if-Tag i use:

$usernamemissing = $loginclass->checkusername($_POST['uname']);

In the Browser comes this error-msg:
TinyButStrong Error (Merge PHP global variables): Can't merge [var.usernamemissing] because there is no PHP global variable named 'usernamemissing'. This message can be cancelled using parameter 'noerr'.

How can i make $usernamemissing to a global var ?
thx

Inside a class, you variables are not global but local.
You can do:
   global $usernamemissing;
   $usernamemissing = ...
or
   $GLOBALS['usernamemissing'] = ...

Hi,
i've done it but its stillt the same error...