Description
Description
Hello,
There is a very specific scenario which I know to explain how to reproduce but not to explain why it happens. I will do my best to explain below:
Using Symfony version 6 only platform:
using set_error_handler, and using include <file> that does not exists multiple times
throws a Segment 11 error which I could not trace and explain what it means.
This happens only on specific scenario, since doing a loop always catches it.
I would like to add that this happens only on docker environment and does not happen on a normal php server. I have tried and it reproduces on alpine and debian containers.
To simplify the explanation they use set_error_handler with the following function:
$this->includeHandler = static function ($type, $msg, $file, $line) {
throw new \ErrorException($msg, 0, $type, $file, $line);
};
The code runs with it is:
set_error_handler($this->includeHandler);
try {
foreach ($this->scanHashDir($this->directory) as $file) {
try {
if (\is_array($expiresAt = include $file)) { // <----- This is the problametic line [include...]
$expiresAt = $expiresAt[0];
}
} catch (\ErrorException $e) {
$expiresAt = $time;
}
if ($time >= $expiresAt) {
$pruned = $this->doUnlink($file) && !file_exists($file) && $pruned;
}
}
} finally {
restore_error_handler();
}
This will actually catch the error for a dozen of times and than throws the segment fault.
I have a ready project with explanation which file it is happening in and how to reproduce it.
There is also a link for this in Symfony community: Here
PHP Version
php 8.1.3
Operating System
Docker container php:8.1-fpm latest