Thanks to both Bastien and Sebastian: While I understand that an interface is like an abstract Class, in that you don't have to flesh-out your methods, but rather where you define exactly how Classes who implement that interface will be required to flesh-out those methods. But so what? What's the point? Without giving me complicated examples, just give me one simple example that illustrates the advantage of using an interface over writing a new Class where you flesh-out whatever methods you want. After all, an interface requires the same thing, does it not? As such, I just don't see the advantage interfaces bring. Cheers, tedd _____________________ tedd.sperling@xxxxxxxxx http://sperling.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php