PDF documents are a very common form of hypermedia documents. Whether it’s books, bills, or invoices we consume PDF documents on a daily basis. In this article, we are going to learn how to generate PDF documents using Node.js and Worker queue called Kue. PDF generation is used in products such as E-commerce based applications, airline tickets, hotel booking, etc. We can use the same principle which I am going to show you below and apply it to implement the feature.

Now, it’s time to update your PHP web server. We had few vulnerabilities with previous versions like openSSL and others. PHP 7 is very fast, advanced and has improved execution time. XAMPP is the most popular PHP development environment, it saves time and effort by providing easy way to install Apache-MySQL-PHP framework. This post helps you how to install XAMPP 7.0 with Redis and memcached extensions for Ubuntu and Mac operating systems. Follow the below steps to install XAMPP.

Most of my readers are expecting a better chatting system from 9lessons, I have been working with different technologies like Node, Socket.io and etc. Finally I found Redis, it is an open source advanced key-value database storage system, works like NoSQL database. Redis operations can be executed on the server side and reduce the client's workload. It is used for caches to speed up web applications