function in a class

[Anon]

i am pretty new with class.
i like to know how can you bring a function which is created outside a class.

eg i have a function called new_member(); in a .inc file. how can i bring that function and its variable into a class?

i mean..........

class member
{
// where and how would i include the new_member(): fuction in this class?

}

[Anon]

add an

include( "newMemberClass.php" );

[Anon]

I have the include file at the top of the page.. and just want to bring a function to a new class.

do i include the file again inside the new class?? by doing this i am not including this file twice??

please help