News Feed
Sections




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

Mathias Verraes:
Named Constructors in PHP
June 13, 2014 @ 09:42:15

Mathias Verras has a new post to his site about an idea he calls "named constructors". This method uses static factory methods to simulate the idea of a constructor and initialize the object.

PHP allows only a single constructor per class. That's rather annoying. We'll probably never have proper constructor overloading in PHP, but we can at least enjoy some of the benefits. Let's take a simple Time value object. Which is the best way of instantiating it? The only correct answer is "it depends".

His example shows the typical constructor creation with variable arguments, but points out that this can get messy quickly. His other method, the factory methods as "constructors", can make for a cleaner interface and makes the class more flexible. They make the object able to be initialized with different types of values and even satisfies the Single Responsibility Principle. He goes through a few examples using his "Time" class, showing how different "constructor" methods can be used to handle inputs ranging from a normal hour/minute format out to a "from minutes since midnight" value.

0 comments voice your opinion now!
named constructor factory method static tutorial time

Link: http://verraes.net/2014/06/named-constructors-in-php/

blog comments powered by Disqus

Similar Posts

PHPBuilder.com: Session Security

PHPBuilder.com: An introduction to PEAR's Validate package

Oliver John Tibi's Blog: Mobile-ize Your CakePHP Application

Gonzalo Ayuso's Blog: Strange behavior in PHP with method visibility

SitePoint PHP Blog: Image Scraping with Symfony's DomCrawler


Community Events





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


testing framework series developer code language laravel threedevsandamaybe introduction interview podcast opinion release community install api symfony2 refactor list unittest

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