An Introduction to PHP Standard Recommendation (PSR)

Once upon a time, at a conference, the lead developers from a selection of frameworks sat down in the same room and agreed some standards for all their projects to use. The aim was to make PHP frameworks and libraries easier to combine for users. That is when php-fig: the PHP Framework Interop Group was born. This group of awesome individuals oversee the PHP Standards Recommendations (PSRs).

PHP Coding Standard, PDF, Php

What is PHP's Future with PHP 8? - DEV Community

PHP Professional Toolkit Plus

Autoloading in PHP and the PSR-0 Standard — SitePoint

PSR-1 - Basic Coding Standard - PHP-FIG, PDF, Subroutine

Standardization in web projects - BitBag

PHP Coding Guidelines & Best Practices — Flow Framework 8.3.x documentation

Intro To PSR (PHP standards recommendations), by Moath Obeidat

PSR-2 and PSR-12: Why We Need Standards and How to Apply Them – Quick Admin Panel

PHP Standards Recommendation (PSR) explained