News Feed
Jobs Feed
Sections




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

Web Mozarts:
Give the Traversable Interface Some Love
October 10, 2012 @ 09:12:56

In this recent post to the Web Mozarts site, Bernhard Schussek "gives Traversable some love" and introduces you to the Traversable interface and how it might work better for certain things than an Iterator.

Let's start with a simple use case. Let's create an interface ArrayInterface that demarcates objects that behave like PHP arrays. The interface should allow for counting, iterating and array access.

He shows how to create this interface based off of a "ArrayInterface" that implements "Countable", "ArrayAccess" and "Iterator" with all of the methods required for each. He points out that, while the documentation in the manual makes "Traversable" shouldn't be used, it can be extended instead of Iterator. This gives other classes that extend this interface the option of extending either of the Iterators ("Iterator" or "IteratorAggregate") they want.

0 comments voice your opinion now!
interface traversable introduction iterator iteratoraggregate


blog comments powered by Disqus

Similar Posts

SitePoint PHP Blog: Sophisticated Object Iterators in PHP

PHPMaster.com: Using YAML in Your PHP Projects

David Gardner's Blog: Why you should always use PHP interfaces

QaFoo.com: Mocking with Phake

Kevin Schroeder's Blog: An Introduction to SimpleCloud (Series)


Community Events











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


hack podcast install database language example framework facebook package symfony2 hhvm application unittest composer introduction security component project performance release

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