The first part is kind of baffling. I'm not even sure what is trying to be said there. English as a second language? The second one if actually wrong unless so

The first part is kind of baffling. I'm not even sure what is trying to be said there. English as a second language? The second one if actually wrong unless something changed very recently, PHP is not JIT compiled (at least not to machine code). It is a bytecode VM. I remember the discussion came up and optimizing the byte code was actually improved performance more than proof of concept JIT did for common PHP use cases. PHP 8 is supposed to have a JIT I believe.