The Chain of Responsibility design pattern is gaining in popularity, since being part of the PSR-15 standard (HTTP Request Middleware). Here is a quick overview of it. It let's you chain actions, and often gives them the ability to stop the chain.
A simple .vimrc config option so you can always see the current line number, along with relative line numbers above or below the current line
Array Destructuring is a new feature from PHP 7.1 that can make code cleaner and a bit quicker to write. However it doesn't seem to be commonly used. Here is a guide on how to use it.