Description:
------------
when implementing interfaces that have common methods in a parent class and an extended class, the code below produces an error.  if i provide a method in the child class, it works.  it also works if the parent class doesn't implement its' interface.  but i think i should be able to inherit from the parent class and satisfy both interfaces.  though it would be easy in this example to "code around" the problem, i ran across this in a situation where it won't be quite as easy.

Reproduce code:
---------------
<?php
interface gotsMyMethod {
	public function myMethod();
}
class theparent implements gotsMyMethod {
	public function myMethod() {
		return "boo!";
	}
}
interface iNeedsMyMethod {
	public function myMethod();
}
class child extends theparent implements iNeedsMyMethod {
}
$child = new child();
echo $child->myMethod();
?>

Expected result:
----------------
I expect the code to run without any errors and output "boo!"

Actual result:
--------------
Fatal error: Can't inherit abstract function iNeedsMyMethod::myMethod() (previously declared abstract in gotsMyMethod) in C:\www\test\bug.php on line 13