Many of us write SQL queries. I am giving six example of some advanced but very useful ones that will make your life easier.
I had some problems recently when I realized that changing the document root every time you need to test a site locally isn't cool. So I decided to write a small tutorial on virtual host under WAMP.
So, you have a webshop that is international and want to have a currency converter? Follow this tutorial and you will learn how to build one.