PHP checks the filesystem for file existing even if available in opcache and all opcache validations are disabled

[dkarlovi]

Description

The following code:

opcache.enable = 1
opcache.enable_cli = 1

opcache.file_update_protection = 0
opcache.validate_timestamps = 0
opcache.validate_permission = 0
opcache.validate_root = 0

opcache.file_cache = "/var/cache/opcache"
opcache.file_cache_only = 1
opcache.file_cache_consistency_checks = 0

will still trigger "File doesn't exist" even though opcache is correctly prepopulated. If I create an empty folder with an empty file, it works as expected.

See (reproduced in Docker, but this is not Docker specific, it's only convenient to reproduce there):
https://github.com/dkarlovi/docker-php-opcache-only/blob/main/Dockerfile#L15

Try it like here:
https://github.com/dkarlovi/docker-php-opcache-only/blob/main/README.md

PHP Version

PHP 8.2, 8.3

Operating System

Docker PHP image

[SakiTakamachi]

Hi, docker images are not under our manage.

Please report it here.
https://github.com/docker-library/php

[SakiTakamachi]

Sorry, I misread the description. So you just used Docker to reproduce the issue, right?

Has that happened outside of a docker environment? Or haven't you tried that yet?

[dkarlovi]

@SakiTakamachi NP:

So you just used Docker to reproduce the issue, right?

Correct! It's a bit convoluted, but easiest to reproduce in Docker.

I haven't tried it yet outside Docker, no. It should be quite doable, but since you need to tweak opcache settings and have it use the filesystem for storage, it's a bit more of a PITA to do.

For one thing: you'd need to prepopulate the build the opcache using the file on the filesystem, then remove the file and ensure it's not in some cache still, then rerun PHP which shouldn't do a filesystem check. Docker allows us to make this much simpler since it's restarting from scratch in step 2 with artifacts generated in step 1, we know there's nothing on the filesystem.