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Edit report at https://bugs.php.net/bug.php?id=69199&edit=1

  ID: 69199
  Updated by: rasmus@php.net
  Reported by: pegasus@vaultwiki.org
  Summary: require_once doesn't require ./ files
  Status: Re-Opened
  Type: Bug
  Package: Scripting Engine problem
  Operating System: Centos 6 64-bit
  PHP Version: master-Git-2015-03-07 (Git)
  Block user comment: N
  Private report: N

  New Comment:

Is there something unique about your setup? This code runs in production on tons of sites taking billions of requests, so I doubt there is a general issue here. Are you using any chroots? Hard-links? nfs?


Previous Comments:
------------------------------------------------------------------------
[2015-03-22 17:15:00] pegasus@vaultwiki.org

Here is an example script that shows one way:
### a.php ###

function test_function()
{
}

### b.php ###

class Test_Class
{
public static function runTest() {}
}

### main.php ###

require_once('./a.php'); // first ./ require seems to always be included
require_once('./b.php'); // eventually might not be included

test_function();
Test_Class::runTest();

echo 'complete';

####

EXPECT: 'complete'
ACTUAL: mostly 'complete'. Eventually, maybe Fatal error: class 'Test_Class' not found.

Some more information:

I cannot provide a test script that always reproduces the issue because the behavior is inconsistent. The issue seems related to the Zend Opcache, since I no longer experienced the issue when opcache was disabled for about 24 hours. However, perhaps I just didn't test vigorously enough.

*Sometimes* ./ requires will simply be overlooked, as if the require line is not present in the script at all. Restarting php-fpm fixes the issue for a while.

I have had this occur in different PHP scripts for different requires and the result is the same. Once it happens in one script, it will continue happening in the same script until php-fpm is restarted. The curious part, if this was related to Zend Opcache, is that even if the script is modified e.g. to check get_included_files(), the modified version of the script will still exhibit the same behavior (I'm not familiar with how Zend Opcache works -- perhaps it updates using deltas?)

I have not yet tried with opcache.use_cwd=0
Perhaps it is related to this config variable being turned on.

I have done some searching on this behavior, and I came across this: http://stackoverflow.com/questions/8490667/php-class-not-found-but-its-included
Although the difference is that I am using ./, the end result is similar (PHP class not found even though it's included).

Perhaps PHP is internally converting ./ to http://localhost/ on some occasions, although I do not know why it would. But this would give the result that I am experiencing. Just some ideas.

------------------------------------------------------------------------
[2015-03-22 04:22:18] 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.

------------------------------------------------------------------------
[2015-03-21 13:43:32] pegasus@vaultwiki.org

My mistake, this still occurs in the installation after running the script a few times. It seems this has something to do with the Zend Opcache. When it is disabled, I can no longer reproduce the issue.

------------------------------------------------------------------------
[2015-03-21 13:28:00] pegasus@vaultwiki.org

This issue was fixed by re-installing the affected PHP installation.

------------------------------------------------------------------------
[2015-03-09 17:04:28] pegasus@vaultwiki.org

Strange. Re-did make install, restarted php-fpm, and this issue has magically disappeared.

------------------------------------------------------------------------


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the rest of the comments, please view the bug report online at

     https://bugs.php.net/bug.php?id=69199

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