PHP is one of the few server-side scripting languages that have evolved rapidly on account of being the preferred platform for web development. Unlike previous versions, It now contains all the components for being an absolutely robust language be it flexibility or dynamic architecture. Interestingly the latest PHP version completely supports the OOP concept. A bunch of best practices for development of modern PHP applications will really help you leveraging this popular platform for web application development. On behalf of my experience, I would recommend following practices to be included in your PHP development.