News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

PHP 10.0 Blog:
duck operator
June 05, 2008 @ 14:36:31

In this new post to the PHP 10.0 blog today, Stas talks about duck typing, a method that lets the code decide the functionality to use rather than a direct relation to a parent.

Well, if you are into duck typing style of programming, it may be interesting for you to have an object that implements certain set of functions, but not necessary declares it at class definition. Languages like Smalltalk do it all day along, so why PHP couldn't?

His example defines an interface Cow and a class MooingGrassEater and a function, CowConsumer, that does the work. A classname is passed in and an instance of that class is checked with "implements" rather than "instanceof" to see if it uses the Cow interface. He points out a place where PHP itself uses something similar in user defined streams.

0 comments voice your opinion now!
duck operator instanceof implements class interface relation


blog comments powered by Disqus

Similar Posts

PHPBuilder.com: Implementing User Defined Interfaces in PHP 5

DevShed: Using Subclasses and Accessors with Member Visibility to Protect PHP 5 Class Data

Andreas Gohr's Blog: MySimple.php - A lightweight PHPMyAdmin substitute

Juozas Kaziukenas' Blog: SQL Native Client as MSSQL driver for Zend Framework

DevShed: Building Concrete Validators


Community Events





Don't see your event here?
Let us know!


language developer release interview library podcast series threedevsandamaybe list api code wordpress introduction testing application unittest laravel community install configure

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework