The benefit of this solution is that it allows to place more tools on the screen without forcing the user to scroll or change pages. The page will only load in web browsers supporting canvas which includes Firefox, Opera or Google Chrome for example while Internet Explorer 8 (and likely all other Internet Explorer versions as well) throw an error and do not display the page.

There are obviously some negative aspects as well. Missing descriptions or information on the screen are probably the most noticeable ones. The only source of information are the icons. A click on an icon will display a hovering box that contains a short description and a link to the homepage. The problem here is that you need to click on each item that you do not know to receive information about it. It would have been better to display the information on the page or while hovering the mouse over the entry.

It is possible to filter the tools by category. Possible categories include debug, code, design or deploy. A search in the footer is available as well which can be used to find specific tools.

The team admits that only a fraction of the tools are already listed on the website. Webmasters and developers can submit tools which are then reviewed by the team and put on the website if appropriate. They have also plans to create a generic website that is accessible by all web browsers. Web developers and interested users can visit the page here.

Related posts

• Web Development: Widerbug For Firefox (8)
• Web Development: PHP – what role does it fill (1)
• Web Browser: Firefox Save Tabs Add-On (1)
• Prepare For Firefox 3.0.9. (4)
• PHP – what it does and what it doesn’t (4)

The programming language, Ruby, was created in the mid 1990’s in Japan, by Yukihiro “Matz” Matsumoto. Ruby is based on Perl, Smalltalk, Eiffel, Ada, and Lisp and was written to create a programming language that, according to Matsumoto, “was more powerful than Perl, and more object-oriented than Python.”

One of the goals of Ruby is to allow the simple and fast creation of web applications. The language itself satisfies this goal. Because of this, there is much less tedious work with this language than many other programming languages. Ruby is also free of charge. It is also free to copy, use, modify, and distribute. Since Ruby can be modified, programmers can make necessary changes and can code without feeling restricted. Another feature of Ruby is its mark-and-sweep garbage collection which allows programmers the ability to code without having to worry about the need to maintain reference counts in extension libraries. Also, if an operating system allows for it, Ruby can dynamically load extension libraries. Ruby currently ranks as the 9th most popular programming language in the world. There are many online guides where Ruby programmers to-be can learn how to program in Ruby.

Ruby on Rails, often simply called Rails, is an open source web application framework that was designed for Ruby by David Heinemeier Hansson and was released in July 2004. Ruby on Rails makes use of an object relational mapping layer known as the ActiveRecord. Because of this, programmers do not have to specify database column names in class definitions. Rails will retrieve this information on its own from the database based on the class name. Rails also has a testing framework built in which allows programmers to write test cases which helps them create more reliable, robust code.

Related posts

• Web Development: PHP – what role does it fill (1)
• Scriptastique web development roundup (4)
• PHP – what it does and what it doesn’t (4)
• Mozilla Open Web Tools Directory (1)
• How echo works in PHP (2)

One of the better scripts to display cached RSS feeds in a website is SimplePie. It might look a bit intimidating at first glance as it provides lots of options to customize the display. It is however very easy to display a feed with just a few lines of code. Start by downloading SimplePie from the website. Extract it to the computer system and upload it to the root folder of the website. You should also create a directory called cache in that root folder and make it writeable (chmod to 777).

Now add the following two lines to the top of the php file where you want to display the feed in. The first line defines the location of the simplepie.inc file on the web server (which is in the simplepie directory in root), the second the feed that you want to display on the website.

<?php
include_once $_SERVER['DOCUMENT_ROOT'] . '/simplepie/simplepie.inc';
$feed = new SimplePie('http://feedproxy.google.com/Ghacksnet');
?>

Now place the following code in the location on the website where the feed should be displayed. This will fetch the five newest feed items and display them in the selected location.

<ul>
<?php foreach ($feed->get_items(0, 5) as $item): ?>
<li>
<a href="<?php print $item->get_permalink(); ?>">
<?php print $item->get_title(); ?></a>
</li>
<?php endforeach; ?>
</ul>

And that’s it. SimplePie offers a wealth of additional functions and settings to display more than one feed or mix feeds. The default caching time is 60 minutes.

Related posts

• Web Development: PHP – what role does it fill (1)
• PHP – what it does and what it doesn’t (4)
• Web development roundup (1)
• Scriptastique web development roundup (4)
• Publish RSS News Feeds On Twitter (6)

The most common server architecture on which PHP is found is called LAMP (for Linux + Apache + MySQL + PHP). All of the elements of LAMP are open source, meaning that the source code of the application is freely available. This means that the cost of setting up a server running LAMP is reduced (No License Fees), so LAMP based web hosting tends to be the least expensive solution available.

The Internet is built on a client-server architecture. On the client side we have the user and the browser. One the server side we have the server and its script interpreter (In our case, Apache and PHP).
Because PHP runs on the server side, we cannot use it for flashy client side effects, things like animations and auto-complete cannot be performed by php because php is only running on the server. For client side programming we could use javascript, Flash/Flex, Silverlight, or JavaFX.

What we can do with PHP is access a database, connect to other websites/services for information, and build a page out of smaller pieces, which we then deliver to the client for rendering.

I think it is important to indicate at this time that there are four levels at which you can work with PHP.

1. Scripting – this is where you take a small script and add it (integrate) into an existing page.
2. Coding – this is where you write scripts as needed to add basic functionality to your site.
3. Development – this is where you write an full application in PHP.
4. Architect – this is where you properly design an application that develop it into an application. Like development but puts a lot more thought into a good foundation.

Depending on your actual needs, several of these layers could be overkill for your task. The following articles will mainly be focused on the first two levels – scripting, and coding. In Scripting and coding we have two primary tasks we accomplish. One makes your job as webmaster easier. The second adds new functionality to your site.

Jeremiah Stover is a Software Engineer and a Business IT Consultant at Pragmatic Development. He has hands on experience and regularly provides practical advice in Business, Marketing, IT equipment and software. His Specialties include interpersonal communications, design skills, teaching and instruction. Right now he spends most of his time developing web applications in PHP and MySQL.

Related posts

• Web Development: PHP – what role does it fill (1)
• Ghacks Web Development PDF Article Compilation January 09 (6)
• Web Development: HTML Playground (7)
• Web development roundup (1)
• Scriptastique web development roundup (4)

HTML is a markup language that lets us describe attributes of the text and blocks on our pages. This works great for simple requests, making pages much more interesting than plain text. However it leaves us with a very simple structure. One page from One url (address) results in one rendered content (every time this url is requested, the output is the same).

To give us more options we have programming languages. Some like PHP run on the server side. They modify the content that will be displayed before it is sent to the client and on to the browser. Others like JavaScript run on the client side and allow changes to be made in the browser after the page has been rendered – usually for interactivity or for adding a feature not normally available in that browser.

The very first thing you _must_ do before getting started with PHP is get a good grasp of HTML (and CSS). Many webmasters use a tool like Dreamweaver, Expression Web or KompoZer. To
work with PHP it is important that you understand the underlying HTML code. You will be modifying this code so you need to be able to understand the HTML well enough to understand what you see.

If you like video training try Lynda.com or VTC.com. If you prefer reading a book try “Head First html with CSS & Xhtml” or if you prefer free web instruction try w3schools.com and tizag.com.

Now that you understand the markup language which is what is sent to the browser (HTML) you are ready to tackle the server side use of PHP.

Jeremiah Stover is a Software Developer at Pragmatic Development. He specializes in client communications. While PD does offer a full range of IT services and consulting, they are currently specializing in website development in PHP/MySQL.

Related posts

• PHP – what it does and what it doesn’t (4)
• Ghacks Web Development PDF Article Compilation January 09 (6)
• Web Development: HTML Playground (7)
• Web development roundup (1)
• Scriptastique web development roundup (4)