News Feed
Sections




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

Thomas Weinart:
What Iterators Can Do For You
August 01, 2012 @ 09:55:22

Thomas Weinert has a new post to his site showing some of the things that iterators can do for you (including working with arrays and aggregation).

Basically Iterators provide a list interface for an object. Like all interfaces they are a contract how something can be used. If you use an interface it is not relevant how it is implemented - the implementation logic is encapsulated. It is of course relevant on the integration level. A bad implementation can impact the performance of you application. Even an good implementation may need special resources (like a database). But all this does not impact how you use it. Your code using the object with the Iterator interface stays the same.

He shows how to use the IteratorAggregate, ArrayIterator, FilterIterator and how to create a custom Iterator that you can extend in your own code.

0 comments voice your opinion now!
iterator tutorial array filter aggregate custom


blog comments powered by Disqus

Similar Posts

PHP in Action: Real programming with PHP 5.3 (part 1): array processing

DevShed: Intercepting Customized Exceptions in PHP 5

Robert Basic's Blog: Data filtering with PHP's Filter extension

ITNewb.com: Encrypting Passwords with PHP for Storage Using the RSA PBKDF2 Standard

Ian Christian's Blog: Sending multipart email from a Task in symfony 1.4


Community Events





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


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

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