if an object calls one of its methods ($thing->foo()), any static-type method calls made inside there - self::a(), parent::a(), fezbar::a() -
will have $this defined, pointing to original calling object.
self:: and parent:: are always relative to the containing class,
regardless of this.
two exceptions:
- the method is declared as 'static'; if so, $this is never set
- the method is called via call_user_func or call_user_func_array; if so, $this is not set
This should be fixed. $this should be visible for methods invoked through call_user_function().
And you're absolutely right about your analysis of the :: operator. Contrary to popular belief it was NOT introduced for static function calls, but rather, for being able to invoke methods of parent classes (a much more common use for the :: operator in other languages too).
Zeev
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