Some useful PHP related links

An easy-to-read, quick reference for PHP best practices, accepted coding standards, and links to authoritative PHP tutorials around the Web

http://www.phptherightway.com/

https://phpbestpractices.org/

 PHP Framework Interop Group

http://www.php-fig.org/

PHP Trends, libraries, and freameworks

http://phptrends.com/

Sample code to understand several PHP design pattern

https://github.com/domnikl/DesignPatternsPHP

A curated list of amazingly awesome PHP libraries, resources and shiny things.

https://github.com/ziadoz/awesome-php

The League of Extraordinary Packages

http://thephpleague.com/

A (digital) square where digital companies broadcast the list of tools they are using to realize their products

http://stackshare.io/