PHPStan is a PHP Static Analysis Tool.
It focuses on finding errors in your code without actually running it.
See the full article about the PHPStan 0.12 release and EU-FOSSA hackathon.
We were honored to be invited to the event. It was a great opportunity to achieve two full days-worth of open-source work what would otherwise take weeks of constant interruptions and back-and-forths. It definitely sped up the development of PHPStan 0.12 and helped bringing it to the final release this year.
Lukáš Unger (@lookyman_), Ondřej Mirtes (@OndrejMirtes) and Jan Tvrdík (@jantvrdik)