Kévin Dunglas Founder of Les-Tilleuls.coop (worker-owned cooperative). Creator of API Platform, Mercure.rocks, Vulcain.rocks and of some Symfony components. PSR-7, the last PHP Standard Recommendation, was adopted by the PHP Framework Interoperability Group on May 19. That PSR defines PHP interfaces representing HTTP messages: request and response (client and server side), uploaded file, URI, stre