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Bug #77183 $_SERVER is not set in preloaded classes
Submitted: 2018-11-20 15:38 UTC Modified: 2021-09-26 04:22 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: benjamin dot morel at gmail dot com Assigned: cmb (profile)
Status: No Feedback Package: opcache
PHP Version: master-Git-2018-11-20 (Git) OS: Fedora 29
Private report: No CVE-ID: None
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 [2018-11-20 15:38 UTC] benjamin dot morel at gmail dot com 
Description:
------------
When using a preloaded class that references $_SERVER, the variable is not set.
When setting auto_globals_jit to Off, it works.

Test script:
---------------
index.php
========

<?php

header('Content-Type: text/plain');

print_r(Test::getServer());



class.php
=========

<?php

class Test {
        public static function getServer()
        {
                return $_SERVER;
        }
}



preload.php
===========

<?php

opcache_compile_file('class.php');

Expected result:
----------------
Array(
  ...
)

Actual result:
--------------
Notice: Undefined variable: _SERVER in /var/www/html/class.php on line 6

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 [2018-11-21 18:15 UTC] cmb@php.net 
Works for me.
 [2018-11-22 10:20 UTC] benjamin dot morel at gmail dot com 
Weird. I reproduced it again today with the latest master.

Full reproduce steps:

1. Create /var/www/html/index.php as above
2. Create /var/www/html/class.php as above
3. Create /var/www/html/preload.php as above; change the path to an absolute path:
   opcache_compile_file('/var/www/html/class.php');
4. Add this line to php.ini: opcache.preload = /var/www/html/preload.php
5. Restart php-fpm
6. Load http://localhost/

You should get the error:
Notice: Undefined variable: _SERVER in /var/www/html/class.php on line 6
 [2018-11-22 13:19 UTC] cmb@php.net 
> Restart php-fpm

Aha!  I've only tested on CLI; apparently, the issue only affects
some SAPIs.
 [2021-09-14 13:58 UTC] cmb@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2021-09-14 13:58 UTC] cmb@php.net 
Is this still unresolved with latest PHP 7.4?  If so, would it
work if included class.php (opcache_compile_file() has known
limitations regarding preloading)?
 [2021-09-26 04:22 UTC] php-bugs at lists dot php dot net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
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