Description:
------------
"I am not sure whether this is a bug, a feature, or lack of a feature."
The class must be declared in a global scope. But there  no  explanation  about class declarations that are included in function or in method of other class.
If I would like to declare a class inside other class or function, I will  have an error. But the strange is that, if I make an include into a function or in class method, then all is working fine: my new class declaration (included  from  other file) become normal  and  I  can  use  the  class  as  global  declared  class. 

The question is: why class declaration not permitted inside the functions,  but
it is possibly to load it in the function  using 
"include(...)" command.

Examples(1):
------- class_in_method.php ----------
<?php
//start
class glob
{
   var  $i;
   function glob1()
   {
      class incl
      {
         function incl_test()
         {
            return "result!!";
         }
      }

      $i=new incl();
      echo $i->incl_test();
   }
};
$g=new glob();
$g->glob1();
//end
?>
well, it not works, as listed in all manuals. It shows error:

Fatal error : Class declarations may not be nested.
---- end example(1) -----------

But when we are using include("...")

Examples(2):
-------- class_in_method_included.php -------------
<?php
//start
class glob
{
   var  $i;
   function glob1()
   {
      include("incl_class.inc");
//      class incl
//      {
//         function incl_test()
//         {
//            return "result!!";
//         }
//      }

      $i=new incl();
      echo $i->incl_test();
   }
};
$g=new glob();
$g->glob1();
?>
//where "incl_class.inc" file contains:
<?php
   class incl
   {
      function incl_test()
      {
         return "result!!";
      }
   }
//end
?>

this example works normal and returns as expected:

     result!!
---- end example(2) -----------

all i'v found in bug lists that similar to my request is  Bug  #11835,  but  it is different to my question (man try to include content of class, not the whole class declaration as i'm doing).


Expected result:
----------------
result!!