This article will provide a brief tutorial in using HTML, CSS, JavaScript, PHP, and MySQL to build a simple reservation system. It is assumed you are already at least a little familiar with all these technologies, and the real purpose here is just to link them all together to accomplish a common task. It is intentionally over-simplified, because it is aimed at beginners. Scenario ... Let’s suppose our client owns a conference center where people can book rooms for conferences and other events....