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

Havard Eide's Blog:
Countable
August 01, 2008 @ 10:23:28

In a new post Havard Eide looks at the creation of a Countable interface that can be used in any application:

Today I will look at the Countable interface, it has a single function that needs to be implemented: count(), by implementing this you can ensure that there is a count() function ready to use on any given class that implements it. The Countable interface is used in other places in the SPL as well: the ArrayIterator and ArrayObject classes implements this interface ( and SqliteResult if present ).

In his code examples he shows simple methods for returning the count() of a property, but notes that the real power of it comes in the ability to manipulate the number returned from the call based on other parameters (or filtering).

1 comment voice your opinion now!
countable interface count spl arrayiterator arrayobject


blog comments powered by Disqus

Similar Posts

WebReference.com: Database-enabled Ajax with PHP

OpenSky Blog: Inheritance in PHP, or why you want to use an Interface or an Abstract class...

PHPClasses.org: Software Review - Delphi for PHP 2007

Harry Roberts' Blog: Flexible PHP Interfaces

Daniel Cousineau's Blog: ImagePlane and some simple OOP designs


Community Events











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


introduction symfony2 composer hhvm facebook podcast application hack install package opinion unittest component release framework security code example language overview

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