6 Warning: call_user_func expects parameter 1 to be a valid callback, class 'C' is not a subclass of 'D' in %s on line 19
8 Warning: call_user_func expects parameter 1 to be a valid callback, class 'C' is not a subclass of 'E' in %s on line 20
14 Warning: call_user_func expects parameter 1 to be a valid callback, class 'C' is not a subclass of 'D' in %s on line 24
16 Warning: call_user_func expects parameter 1 to be a valid callback, class 'C' is not a subclass of 'E' in %s on line 25
24 Warning: call_user_func expects parameter 1 to be a valid callback, class 'D' is not a subclass of 'E' in %s on line 30
32 Warning: call_user_func expects parameter 1 to be a valid callback, class 'D' is not a subclass of 'E' in %s on line 35
36 Warning: call_user_func expects parameter 1 to be a valid callback, class 'E' is not a subclass of 'C' in %s on line 38
38 Warning: call_user_func expects parameter 1 to be a valid callback, class 'E' is not a subclass of 'D' in %s on line 39
44 Warning: call_user_func expects parameter 1 to be a valid callback, class 'E' is not a subclass of 'C' in %s on line 43
46 Warning: call_user_func expects parameter 1 to be a valid callback, class 'E' is not a subclass of 'D' in %s on line 44