Coding Standard:
- PHP coding standard and development style: http://www.php-fig.org/psr/
- PHP code review and coding standard tool: http://www.sonarqube.org
- PHP based unit testing and automated testing tool: https://phpunit.de
- PHP based coding documentation using dockblock: https://phpdoc.org
- PHP based functional document creation and unit testing tool: http://behat.org
Cross Origin Service:
- CORS mechanism and web-service: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
- CORS technique and implementations: http://www.html5rocks.com/en/tutorials/cors/