These are my notes on how to install a D Programming Language compiler along with it’s package management tool Dub and how to set-up a first “Hello World” project on a Raspberry PI running Raspbian. I’ve chosen the GDC compiler due to its comprehensive architecture support (https://wiki.dlang.org/Compilers#Comparison), and ease of install: sudo apt-get install -y […]

PHP 7 introduces scalar type definitions: your function parameters can be of a given type, and function return type declarations ensuring your function will return results of a given data type. This can increase your code quality by enforcing a specific behaviour of your code, almost similar to how a strongly typed language does. However, […]

PHPUnit and Selenium provide means for testing application functionality. But how can you test your application’s performance? Here Apache JMeter comes in handy, as a tool used for load testing functional behaviour and measure performance. JMeter is a desktop application, written in Java, made available as a package on most Linux distributions. It can be […]

In the previous part of this article, I wrote an introduction to Node.js and Socket.Io; presenting a basic server and client communication model. In this entry I am writing an extension to the Server and Client JavaScript objects, to allow for Application Specific Events. This provides the basic framework to writing an application that routes […]

Below is a minimal step by step guide on installing CodeIgniter 2.1.4. The assumptions are that your using either Ubuntu or Debian, with a GIT + Apache + PHP + MySQL stack available. Step 1: Clone the CodeIgniter repository CodeIgniter is available either as a compressed tarball, or as a git repository. The latter is […]

In Part 1 of Web Application Performance Testing using Apache JMeter I wrote about how to install Apache JMeter and create a test. In this part I am writing about how to monitor server resources, using the PerfMonAgent Server Agent and the PerfMon Metrics Collector Listener plugin. These are particularly useful when trying to measure the impact over […]

Here is an example of how to create type safe lists in PHP 7. Influenced by Java Generics, this approach lets your code guarantee the type of data you can store and retrieve from arrays. To change the type of objects stored in the list, update the second line of code. To change it to […]

Usually browsers communicate with the server, sending a request and getting a response. But what if it would be possible to link two or more browsers, while using the server to route requests between the two? With the advance of server side JavaScript, using node.js, and socket connections supported by HTML5 capable browsers (or frameworks […]

Webtail is an Open Source tool I wrote, for tailing files on multiple servers and displaying content in a browser in real time. Using an agent on each server, it can be used for tailing logs and pushing new lines to a server and distributing content to browsers. Source code and install instructions can be […]

This article provides a quick tutorial on how to write your own Pinterest like Image Gallery using the jQuery Wookmark Plugin and Symfony2. Assuming you already created a Symfony2 Bundle and image files are stored on disk, below are the steps to follow for writing a new Controller and Twig template. WookmarkController (/Controller/WookmarkController.php) NOTE: Requires the Finder […]