Re: Beginner Tutorials for using CLASSES in PHP4

""Nathan Nobbe"" <quickshiftin@gmail.com> wrote in message news:7dd2dc0b0710101150n7d0696a9j5e8755080f7b0cae@mail.gmail.com... > On 10/10/07, Tony Marston <tony@marston-home.demon.co.uk> wrote: >> >> >> ""Jay Blanchard"" <jblanchard@pocket.com> wrote in message >> >> news:56608562F6D5D948B22F5615E3F57E690357FCB7@YGEX01WAL.onecall.local... >> [snip] >> >> so what are the benefits of the "with interfaces" solution over >> >>the"without interfaces" solution >> [/snip] >> >> > Polymorphism. >> >> Are you saying that it is not possible to have polymorphism without using >> interfaces? If so you are very much mistaken. >> > > no, but what you still havent been able to grasp is the alternate > polymorphic facility that interfaces offer. But I don't need an alternative facility for polymorphism as the one I have without interfaces is more than sufficient for my needs. > how would you do the lawnmower w/o interfaces? I wouldn't play with a lawnmower class in the first place. I use PHP to write web applications which deal with database tables, not lawnmowers, and I have yet to find a good reason for using interfaces in such applications. Your contrived examples do not convince me of anything. -- Tony Marston http://www.tonymarston.net http://www.radicore.org > use arrays instead, for grass and human hand, > then you loose polymorphism. > if you instead make human hand and grass extend from a common base class > then youre combining the > passing the behavior of some strange parent class to two mostly unrelated > children. > > -nathan >