Wait a minute! How can you possibly code faster when in fact you have to write more code? Test Driven Development requires additional (redundant?!) classes which only duplicates work. The “redundant” code has to be maintained and kept in sync with the main software. It might be good for some big companies (preferably at the […]
In my previous post I discussed basics of serial communication between Arduino and PHP. Theory behind it is very simple. It all comes down to writing to a file. Simplicity of the serial communication paradoxically might contribute to confusion and surprising results. Serial device is like a black hole when you think about it. You […]
Every application have a bottle neck. It might be a database query, request to an external service, hard drive I/O or an expensive algorithm. Even if the software is running smoothly it might be necessary to optimise in order to handle higher traffic. Significant part of optimisation is caching.
For the last few days I’ve been testing Amazon web services (AWS). I’m looking for a reliable and scalable hosting provider to host Gloople e-commerce platform. Feature wise AWS is amazing. It offers literally everything an enterprise application might need. In fact, they offer so many services (and various configurations of those services) it might […]
In my previous post I showed how to create a multi process socket server in PHP with pcntl_fork. This time I’m going to extend this example and write a chat server. Chat is far more challenging because you not only have to handle simultaneous connections but also allow communications between processes. Inter process communication (IPC) […]
When you create your first socket server you will quickly realise that one thread is not enough. In a single thread architecture a server can’t handle more then one connection at the time. It’s undesired because in most cases there will be simultaneous connections.