What is the logic behind how php opCache works?

Question

PHP

Hello,
who can explain how php opCache works? No, I know that it stores the byte code in memory, but if I have a php script that looks different depending on the authorized user, which means that this is a unique byte code for each user, then php opCache will store a huge amount of compiled code in mind?
The memory will quickly run out and what is the point of opCache then? Can someone explain with an example..

Answer 1

there is a php script that looks different depending on the authorized user

What does it look like physically?
The result of the script - yes, looks different for each user.
So the cache bytecode does not cache it, but the page generation algorithms themselves.
Roughly speaking, time is saved for parsing a file, building a tree of operations, calculating expressions consisting of constants, and so on.