Author Name: Justin Laing
Company: MerchantOS

Author Bio:
Justin is the chief software architect for MerchantOS, a company that provides web based point of sale and inventory control to small retailers.

Tutorials written by Justin Laing:

Create a Facebook Application With PHP
This tutorial covers the basics of using the Facebook PHP Client Library and how to get your application started, including, installing the Facebook Developer Application, downloading the Facebook PHP Client Library, create your application, a hello Facebook! example, FBML - Facebook Markup Language and using the Facebook API.
Monday, 7th January 2008

Floating Point Comparisons In PHP and Javascript
Here’s the problem. Say you’re comparing two floating point numbers a (71.00) and b (71.00) to see if they are the same. The problem is if you’ve done any calculations to arrive at these numbers they might actually be stored as 71.00000000001. Now if one of them is stored that way and the other isn’t and you compare the two to see if they are equal you’ll get a FALSE as the response, even though they should be the same.
Tuesday, 8th January 2008

Scraping Links With PHP
In this tutorial you will learn how to build a php script that scrapes links from any web page, some things that can be created via scraping links and the legal issues associated with scraping content.
Sunday, 6th January 2008

WordPress Customization
A presentation on customizing WordPress. It gives an introduction to WordPress, and covers the basics of customizing themes.
Wednesday, 9th January 2008