Tbh, that's done in modern PHP frameworks as well. ReactPHP & Co rely on you not using global variables, Symfony's architecture is built for that as well. You d

Tbh, that's done in modern PHP frameworks as well. ReactPHP & Co rely on you not using global variables, Symfony's architecture is built for that as well. You don't want to incur the startup cost for every request, because it's very slow. This doesn't matter a lot in single requests of course, but once you're writing APIs that get considerable traffic, you'll want to cut out those 50ms and the load.