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

Mutant PHP Blog:
Specifications for PHP5
September 30, 2008 @ 11:17:47

In a recent entry to his blog Sean shows off a new specifications library he's created to replace common comparison functionality with a series of specs.

I thought I'd share a PHP library implementing this idea by Evans and Fowler. Written for PHP5, it's a library for defining custom specifications using composition and inheritance.

He gives the example of "Person" objects with name and age properties. A search might involve looking directly at the properties to location one that's, say, younger than 35 and has a last name of Johnson. His specification class replaces this and makes it more reusable by applying things like GreaterOrEqualSpecifications and EqualSpecifications to standardize the evaluation. Then its just a quick call to the isSatisfiedBy method to check for correctness.

0 comments voice your opinion now!
specification php5 class download evaluate reuse


blog comments powered by Disqus

Similar Posts

DevShed: Handling MySQL Data Set Failures in PHP 5

Mike Naberezny's Blog: Introducing Zend Framework (PDF)

Aaron Wormus' Blog: WS02 at Zend Conf

Builder.com.au: Quickly Install a LAMP server on Ubuntu

Jurriaanpersyn.com: Ajax/PHP-powered Sudoku Helper


Community Events











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


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

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