What does OPcache do?
- A Caches database query results
- B Caches compiled PHP bytecode so scripts are not recompiled on every request
- C Caches HTTP responses
- D Caches session data
Answer
Caches compiled PHP bytecode so scripts are not recompiled on every request
Enabling OPcache is often the single largest performance improvement available, and it is disabled in some default configurations.





