PHP - Quality Assurance

php

phpunit
Unit testing

http://www.sitepoint.com/8-must-have-php-quality-assurance-tools/
http://qualityassuranceinphpprojects.com/
http://www.slideshare.net/DragonBe/quality-assurance-for-php-projects-with-phpstorm
https://www.acquia.com/blog/high-quality-php-benjamin-eberlei
http://stackoverflow.com/questions/1603980/best-php-qa-tools
http://blog.gabrielsaldana.org/10-php-code-quality-tools-to-avoid-a-mess-in-your-projects/
http://www.dragonbe.com/2011/07/quality-assurance-on-php-projects_17.html
http://phpqatools.org/
http://www.sitepoint.com/testing-apis-raml/
http://www.sitepoint.com/basic-tdd-new-php-package/
http://www.sitepoint.com/api-client-tdd-mocked-responses/