Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.

PHPUnit - Application and Data, Build, Test, Deploy, and Testing Frameworks

SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.

Cucumber - Cucumber is a BDD tool for specification of application features and user scenarios in plain text.

CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.

ESLint - The fully pluggable JavaScript code quality tool