ID:               34804
 User updated by:  toomuchphp-phpbugs at yahoo dot com
-Summary:          More information about class methods
 Reported By:      toomuchphp-phpbugs at yahoo dot com
 Status:           Open
 Bug Type:         Feature/Change Request
 Operating System: Any
-PHP Version:      5.1.0RC1
+PHP Version:      5.x
 New Comment:

So ... now that I have learned C and played around with the 5.1.4
source for a couple of days, I've discovered it's not really possible
to get information about the calling context using matic constants.

In which case, a function named something like 'get_static_child()'
would suffice.  I am still trying to figure out how to find the name of
the child class in the Zend hive of structs (if it is actually stored
somewhere). :-S


Previous Comments:
------------------------------------------------------------------------

[2006-01-11 21:35:07] kvesteri at cc dot hut dot fi

There should definetly be atleast constant __INHERITED_BY__. This new
constant would allow many wonderful things like a generic singleton
class and an efficient implementation of the martin fowler's Active
Record pattern.

------------------------------------------------------------------------

[2005-10-10 10:12:46] toomuchphp-phpbugs at yahoo dot com

Description:
------------
Inside any class method, there are as many as 3 related class and it
would be useful to have all of them as magic constants, and also in the
debug_backtrace function.

Currently only __CLASS__ is available (the name of the direct owner of
the method).  It would be good to know the name of the child class (if
the method was called as part of a child class), and the name of the
calling class if the method was called statically (the same as
get_class($this) inside a static method).

This information would be most useful in the debug_backtrace() array. 
debug_backtrace() was recently modified to report the direct owner
class name rather than the inheriting class' name (see bug #30828) but
it would really be more helpful in debugging to have all three possible
class names available.

Reproduce code:
---------------
class A {
  function A() {
    echo 'direct owner: '.__CLASS__."\n";
    echo 'called as part of: '.__INHERITED_BY__."\n";
    echo 'called by instance of: '.__STATIC_CALLER__."\n";
  }
}

class B extends A { }

class C {
  function __construct() {
    B::A();
  }
}
new C();


Expected result:
----------------
direct owner: A
called as part of: B
called by instance of: C



------------------------------------------------------------------------


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