So I have a massive legacy app that consists of half a million php files. For a single request, I would like to know which php files are used by apache to respond. I can look at the apache logs, they tell me what principal file is used but not the ones that are required later on.
I was trying
find /path/to/app -amin +1 shortly after the request. This yielded no results. Files I
cat /path/to/app/file.php do show up in the above find output (so the filesystem actually is mounted with the atime flag). Also, I assumed that apache somehow caches the files contents so I restarted it and requested a page. Also this didn't produce any results.
How can this be and/or is there another method I could use to find the accessed files?