News Feed
Sections




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

OpenSky Blog:
Inheritance in PHP, or why you want to use an Interface or an Abstract class...
November 30, 2010 @ 11:09:17

On the OpenSky blog today there's a new post about object oriented development and class structure. More specifically about how you should use interfaces and abstract classes if you want to truly lock down the methods of your classes.

Every class has an interface, every class can be typehinted as a method argument, typehint lets you specify the collaborator requirements. Not every typehint is the same.

He includes an example of how, despite a "BankAccount" type hint, classes for different types of accounts can be created and methods from the parent can be overwritten. To help remedy the situation, he shows a more structured example that uses interfaces/an abstract class to define the BankAccount structure, setting requirements on the child class functionality.

0 comments voice your opinion now!
typehint interface abstract class example structure


blog comments powered by Disqus

Similar Posts

Richard Thomas' Blog: Pjq becomes jQPie - jQuery PHP interface extension

Sebastian Bergmann's Blog: PHPUnit and Software Metrics

DevShed: Fundamentals of Recursion in PHP (Part 1)

Richard Heyes' Blog: SMTP class rehash

Harry Roberts' Blog: Flexible PHP Interfaces


Community Events

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


community series api library framework release extension language unittest video podcast psr7 laravel conference development introduction opinion laravel5 voicesoftheelephpant interview

All content copyright, 2015 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework