News Feed
Sections




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

PHP-Coding-Practices.com:
How I Turned A Slow Array Sort Into A Quick One Using Quicksort Algorithm
June 08, 2007 @ 11:17:00

On the PHP-Coding-Practices site, there's a sort of case study posted showing how the author (Tim Koschuetzki) took a chunk of code that was slow at sorting an array and sped it up dramatically using the Quicksort Algorithm.

Today in the morning I had a very unusual programming job to do - or at least what is for me rather unusual. I was confronted with the question whether it is easy to implement the quicksort algorithmn to sort an array of arrays based on a key in the second-dimension of the array. Join me to find out.

The key to the transformation is an application of the Quicksort method that applies a filter to the elements in the array and places items to the right and left of the pivot point. To illustrate the point, he includes both the pre-quicksort code and post-quicksort.

0 comments voice your opinion now!
quicksort algorithmn array sort tutorial quicksort algorithmn array sort tutorial


blog comments powered by Disqus

Similar Posts

SitePoint PHP Blog: Enable PhpMyAdmin’s Extra Features

Zend Developer Zone: AJAX Chat Tutorial Part 7 : Usability Improvements

Developer.com: Getting Started with Memcached Distributed Memory Caching

DevShed: Implementing Additional Methods with mysqli and PHP 5

DevShed: Reading, Writing and Creating Files in PHP


Community Events

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


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

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