News 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

Tobias Schlitt's Blog: Free eZ components sessions -2-

PHPMaster.com: Untangling MVC with CodeIgniter

PHPBuilder.com: Loops & Decisions in PHP - The ABC's of PHP Part 8

PHPMaster.com: Avoid the Original MySQL Extension, Part 1

Stefan Mischook's Blog: PHP Video Tutorial: Functions


Community Events





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


series introduction library bugfix podcast code framework developer configure laravel api community project language wordpress threedevsandamaybe interview release application list

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