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 is a quick step by step guide on how to install RabbitMQ and the PHP-amqplib client on a Debian server. Install server: sudo apt-get install rabbitmq-server Check the server status: sudo rabbitmqctl status Restart the server: sudo service rabbitmq-server start Install PHP5 client (amqp): Follow instructions from here: https://github.com/videlalvaro/php-amqplib Enable the web administration tool: sudo rabbitmq-plugins enable rabbitmq_management […]
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 […]
This entry focuses on how to identify slow parts of your scripts using the PHP/Xdebug profiling feature along with KCacheGrind for profile data visualisation. Xdebug is a PHP extension used for debugging scripts, supporting stack and function traces and information and memory allocation profilling. KCacheGrind is a profile data visualisation tool, allowing for easy browsing of […]
Previously I wrote about how to create a multi user git server on FreeBSD using standard UNIX file permissions, allowing users that belong to the same group to read and write from and to the same repository. But what happens when some users outside the group, should only read, while others should also write? Standard file […]
This entry describes the Symfony2 directory structure; providing a broad understanding of how a project is structured, and laying the ground for file system level security and customization. Below are diagrams for each main folder, along with a description of its components (based on: http://symfony.com/doc/current/quick_tour/the_architecture.html): app/ folder: AppKernel.php – Main configuration entry point. Provides registerContainerConfiguration and registerBundles. […]
In the previous entries, found here and here, I wrote about how to enable browser to server communication, using Node.Js and Socket.Io and how to emit events and return responses. In this entry I will describe how to route those events among different connected browsers, and how to create a basic chat application using Sencha […]
This entry shows how to create desktop applications for the Raspberry PI with a GUI written in JavaScript and rendered using the Java SWT Browser widget. Use this model to benefit from Rich Internet Applications and access device hardware and software resources by creating custom JavaScript functions. The assumptions are that your device is running […]
Below is a list of packages required for Symfony2 running on FreeBSD 10. pkg install php56 pkg install mod_php56-5.6.3 pkg install php56-session-5.6.3 pkg install php56-ctype-5.6.3 pkg install php56-dom-5.6.3 pkg install php56-hash-5.6.3 pkg install php56-mysql-5.6.3 pkg install php56-simplexml-5.6.3 pkg install php56-json-5.6.3 pkg install php56-xml-5.6.3 pkg install php56-hash-5.6.3 pkg install php56-pdo_mysql-5.6.3 pkg install php56-tokenizer-5.6.3 Replace 56 with […]