Polymorphism? OOP help.

[Anon]

I am using abstract classes in my application design, therefore i need a little bit of polymorphism support, i was wondering how to do this here in Php, more specifical, how do i overwrite an already declared method inhereted from a father class in a subclass.
Please help me.
Otto

[Anon]

There's a nice descripotion on how do use ploymorphism here:
http://www.phpbuilder.com/columns/luis20000420.php3?page=6

but when you are talking about overriding an inherited method, that's not polymorphism. This can be done and it is described earlier in his article:
http://www.phpbuilder.com/columns/luis20000420.php3?page=3

hope that helps!

[Anon]

Thanks for your reply those articles had been very usefull, but i still have some questions....
here is the code of my application

class FatherClass {
function myFunction(){//does something}
}
class sonClass {
//here is when i need to "redefine"
//the method
function myFunction(){//does something else}
}

I believe that is not the best way for redefining the method, i am actually redeclaring, what should be then the best way for redefining (overriding, is not perhaps be the proper word, english is not my main language, sorry)
the method, wich is clearly a way to give myFunction a polymorphic behavior.
Thanks Otto