Like in Java, the meaning of the keyword “final” in php5 is:
Final classes: not extendable
final class A { ...}
Final methods: not overridable
class A { final public function f() { ... } ...}
final class members(properties)
not supported in PHP5 !! (differently from Java)

You made some fine points there. I did a search on the matter and found a good number of folks will go along with with your blog.