Re:morse.nl

Whether you want to build your own forum, publish the messages from a mailing list on your Website, or write your own cms: there will be a moment that you'll want to store hierarchical data in a database. And, unless you're using a XML-like database, tables aren't hierarchical; they're just a flat list. You'll have to find a way to translate the hierarchy in a flat file.

Storing trees is a common problem, with multiple solutions. There are two major approaches: the adjacency list model, and the modified preorder tree traversal algorithm.

In this article, we'll explore these two methods of saving hierarchical data.

There are a few different ways to vertically centre objects with CSS, but it can be difficult to choose the right one. I’ll show you all the best ways I’ve seen and also how to create a nice little centered website.

Vertical centering with CSS isn’t an easy thing to do. There are many different ways that may not work in some browsers. Let’s review 5 different ways to vertically centering objects, as well as the pros and cons of each method. (You can see my test page briefly explaining all of them.)

Convert your handwriting to a font in 7 easy steps, the only things you need are a printer, pen and a scanner. Upload the scanned pages and recieve your digitized handwriting for usage in most common programs!

One of the best PHP classes to create beautifull charts with! If you see this you wish you had more clients demanding charts in their applications. You need PHP with GD compiled to be able to use this.

pChart is a PHP class oriented framework designed to create aliased charts. Most of todays chart libraries have a cost, our project is intended to be free. Data can be retrieved from SQL queries, CSV files, or manually provided.

Eric Meyer elaborates on why we need a better layout mechanism for web content (whether it be via CSS or not). We know we shouldn't use tables for layout. Floats are a hack, positioning is flawed, and display:table-cell is no better than using a table itself. But Eric explains here why table behavior works moderately well for layout:

… this is why the old “only use tables for layout” argument keeps coming up over and over: strip away the overheated rhetoric and obvious link-baiting, and you find the core of a real need. Because as powerful as CSS can be, table cells do certain things very easily that CSS makes very, very hard. Cells stretch vertically, keeping equal heights as a matter of their intrinsic nature. They stay out of each others’ way, while still being allowed to sit next to each other and use any sizing dimensions. They tie their layout to their parent elements, and vice versa.

A very good how-to about how you can convert a Dell Mini 9 into the perfect Mac OS X netbook. Something I definitely want to try someday!

There are a lot of netbooks on which you can install and run OS X, but if you're mindful of the handy comparison chart those lads at Boing Boing Gadgets have compiled, you'll know that the Mini 9 is about as ideal a platform as you'll find for a Hackintosh ultraportable: Everything from wi-fi, sound and the function keys down to the optional integrated mobile broadband card and the SD card reader are supported and work as they should. No hardware compromises at all. It's awesome.