APC opcode cache breaks application

Question

I use composer to install Zend Framework 2 and other libraries. Every time after re-installing an application in the same path, I have to manually clear the APC (version 3.1.13) opcode cache (with PHP 5.4.8), otherwise I get errors like

PHP Fatal error:  Interface 'Zend\\Mvc\\ApplicationInterface' not found

or

PHP Fatal error:  include(): Cannot redeclare class zend\\eventmanager\\eventscapableinterface

The failing class keeps changing after every application install. I have apc.stat=1, so the opcode cache should notice newly deployed php files and recompile them automatically, if I have deployed the application on the same path before.

I have discussed the problem on Github with the composer developers and posted my APC settings here: https://github.com/composer/composer/issues/1662. We agree that this looks more like an APC problem.

I guess I could automatize APC opcode cache clearing using the somewhat complicated solution here: stackoverflow.com/a/3580939/94289. But I hope there's some easier fix. — aimfeld
– aimfeld, Commented Mar 6, 2013 at 11:03
touch all your updated files so they have a new timestamp, apc is pretty dumb. — Wrikken
– Wrikken, Commented Mar 13, 2013 at 21:57
I've seen somewhere on mailing list that there are problems with APC and PHP5.4, unfortunately I can't find it, to see what exactly was said. — Zdenek Machek
– Zdenek Machek, Commented Mar 13, 2013 at 22:01
Does this question help at all? PHP with APC: Fatal errors: Cannot redeclare class ... one suggestion is to try changing apc.include_once_override = 0 — Simon Hampel
– Simon Hampel, Commented Mar 14, 2013 at 0:02
Thanks for the suggestions! @SimonHampel I already have apc.include_once_override = 0, see here. @ZdenekMachek I'll try but since I delete the whole vendor folder (containing Zend Framework) upon reinstall and then install the contents again (from composer cache), I think the file timestamps should be updated automatically.. — aimfeld
– aimfeld, Commented Mar 15, 2013 at 8:37

Marin Sagovac · Accepted Answer · 2013-03-16 01:39:15Z

0

I think that is include_path setted up twice. When include_path called twice it will make confusing to APC reading and parsing. Make sure that your ZEND project are not called twice on include_path.

And another checkout that you are properly configure ini settings or put manually ini settings data:

apc.include_once_override = 0
apc.canonicalize = 0
apc.stat = 0

In meanwhile this issue can be already solved due to updates.

answered Mar 16, 2013 at 1:39

Marin Sagovac

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