News Feed
Sections




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

Tobias Schlitt's Blog:
Avoid an endless pifall
February 15, 2007 @ 09:03:00

Tobias Schlitt has provided a helpful hint for developers working with lots of objects, methods, and singleton patterned functionality to keep out of the same trouble he faced.

During my current exam phase I'm working on some tiny private project to relax after learning. In there I'm using a main controller class, which implements a singleton pattern and initializes several sub-controllers while being created. The singletons purpose is, that the other controllers can access to main controller and its functionality whenever they need, without storing a reference each.

The problem with the code (he gives snippets) was a recursive loop that was suddenly appearing. He finally tracked it down to a constructor in another class that was accessing the main controller's constructor. The issue was that the constructor was never finishing up, so a valid instance wasn't returned, so the whole thing started all over again.

0 comments voice your opinion now!
singleton pattern object nested constructor controller singleton pattern object nested constructor controller


blog comments powered by Disqus

Similar Posts

Guilherme Blanco's Blog: register_superglobal("¯name"¯);

Oracle Technology Network: Persisting PHP5 Objects in Oracle

Gonzalo Ayuso's Blog: Moving singleton and factory patterns to Abstract with php 5.3

Cocoliso's Blog: Adding A Syntax Highlighter To Your Site: The Power Of Geshi

SitePoint PHP Blog: How to Expose PHP's Private Parts


Community Events

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


introduction extension unittest php7 laravel laravel5 library podcast opinion version community security framework series voicesoftheelephpant interview language list release api

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