The ultimate guide to PHP Project Structure - ICTShore.com
php - Step-by-step conversion to module-based folder structure for zend project - Stack Overflow
How to choose a PHP project directory structure? | PHP.earth
phpmaster | Localizing PHP Applications Part 3: Nov 2011 - Sitepoint
Symfony News on Twitter: "The evolution of the default directory structure in Symfony applications. (Learn more: https://t.co/4linnbT7Pn) https://t.co/BrouWUmbni" / Twitter
An alternative way to organize the Laravel directory structure // Stefan Bauer