Jit

PHP 8.0 shipped November 26th. I’ve been running it for six weeks on a side project and a greenfield service at work. It’s the most significant PHP release since 7.0, and in some ways more impactful, because the changes pile on top of each other in useful ways. JIT The Just-In-Time compiler was the headline announcement. The reality in production is more nuanced: for typical web apps (database queries, HTTP calls, template rendering) the gains are modest, because those workloads are I/O bound, not compute bound. Where JIT actually shines is CPU-intensive code: image manipulation, data transformation, mathematical computation. ...