--EXPECTF--
In autoload: string(6) "UndefC"
-Warning: call_user_func() expects parameter 1 to be valid callback, string given in %s on line %d
+Warning: call_user_func() expects parameter 1 to be a valid callback, class 'UndefC' not found in %s on line %d
--UEXPECTF--
In autoload: unicode(6) "UndefC"
-Warning: call_user_func() expects parameter 1 to be valid callback, Unicode string given in %s on line %d
+Warning: call_user_func() expects parameter 1 to be a valid callback, class 'UndefC' not found in %s on line %d
--EXPECTF--
Called function foo:bar(1)
-Warning: call_user_func_array() expects parameter 1 to be valid callback, array given in %s on line %d
+Warning: call_user_func_array() expects parameter 1 to be a valid callback, cannot access private method foo::bar() in %s on line %d
Fatal error: Call to private method foo::bar() from context '' in %s on line %d