News Feed
Sections




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

Eric Adams' Blog:
Implementing the Observer Pattern with SplObserver and SplSubject
June 30, 2010 @ 12:43:34

In a recent post from Eric Adams, he shows how to use the SplObserver and SplSubject components of the Standard PHP Library (SPL) to make an implementation of the observer pattern for more reusable code.

As PHP applications grow into complex object-oriented systems, developers look to create centralized components to execute repetitive tasks. These include logging, emailing, redirects, and more. The Observer pattern is a commonly used design pattern to hook such components into an application during runtime, thereby making them reusable. Since PHP 5.1, there are two interfaces built into the Standard PHP Library (SPL) that can be implemented to use the Observer pattern in your application. They are SplSubject, and SplObserver.

He shows how to use them in an example of a custom error handler class that extends the SplSubject with its attach, detach and notify methods as well as logger and mailer classes that will use it to handle their exceptions.

0 comments voice your opinion now!
splobserver splsibject tutorial observer designpattern


blog comments powered by Disqus

Similar Posts

PHPBuilder.com: Handling Hierarchical Data in MySQL and PHP

Imagine Easy Solutions Blog: Testing Logging in Silex

PHPBuilder.com: Use the PHP Filter Extension to Validate User Data

PHP-Coding-Practices.com: How To Generate Monochromatic CSS Stylesheets Within Seconds Using PHP

Zend Developer Zone: Zip-it or DIY Tar-balls


Community Events

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


framework version voicesoftheelephpant community performance extension interview conference example library introduction xdebug api podcast laravel php7 series symfony2 release opinion

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